Therapeutic peptides are among Earth’s most effective health transformation compounds, so I scoured the internet in search of the top peptide companies of 2026.
Since they’re naturally produced in your body and also used to build proteins, quality peptides also have an unparalleled safety profile.
Perhaps you’re wondering where to buy peptides.
Locating quality online peptide sources virtually requires a PhD. To make matters worse, like most alternative health products, the FDA doesn’t regulate or quality control them.
Therefore, we consumers must take matters into our own hands.
From a decade of personal involvement in the industry, I will share with you my research, reviews & comparison of the best peptide companies online, so that you can make your optimal choice.
Limitless Biotech – Best Peptide Vendor Online
LVLUP Health – Best Peptide Capsules
Healthgevity – Best Peptide Formulas
SwissChems – Best Value Peptides
WARNING: Vendors in this industry change rapidly. At a moment’s notice, company ownership can change or a seller may stop lab testing. Although these products are for research purposes only, please do your own diligence before purchasing from any of the listed suppliers. Some advanced physicians even prescribe peptides.
Data shows that demand for GLP-1 peptides like Tirzepatide have exploded by 340% since the resolution of the FDA-announced shortage, and other triple agonists (“GLP-3s”) like Retratrutide are growing even faster among biohackers. Often, you’ll see these abbreviated on research chemical websites
Outliyr research has shown that many commonly used “research-grade” peptide products are counterfeit with fake CoAs, low purity, and/or high levels of contaminants (LPS, heavy metals, microbes)
Outliyr found that third-party COA testing with HPLC purity ≥95% is the minimum standard for research-grade peptides; ≥98% is considered excellent
Only several brands like LVLUP Health and Healthgevity make high-quality non-injectable peptide pills with popular ingredients like BPC-157, TB4 fragments, KPV, GHK-Cu, and certain other ingredients. Oral peptides are great for beginners but vary tremendously on their potency and efficacy
Top-tier vendors provide Bitcoin/crypto discounts and provide as many payment options possible
Tier #1: The Best Websites to Buy Peptides Online
The biohacking and health optimization industry has brought peptides to the limelight.
As the number of suppliers increases, so do scams and low-quality sources. They’re not FDA-approved or regulated. Generally, peptides are not safe to buy online. Without regulatory oversight, essentially you’re taking the company’s word. Some shady vendors even create fake Certificates of Analysis (CoA).
On September 2023, the FDA provided an update that outlines conditions under which drugs can be compounded. More regulations mean a higher barrier of entry but also safer products.
Blindly trusting random internet sellers can end poorly. Especially with peptides.
Most peptides cannot pass through the gut or skin barriers. Usually, they require injection. Injecting peptides bypasses many of the body’s built-in mechanisms to remove impurities and toxins. Therefore, it’s essential to choose the cleanest possible products.
That’s why I only trust a few brands. Here’s an overview peptide vendor comparison chart for your convenience:
| Vendor 🧪 | Best For ✅ | Forms 💊 | Lab Verified 📃 | Shipping (USA) 📦 | Guarantees 📈 |
|---|---|---|---|---|---|
| Limitless Biotech | Overall Best | Injectables, capsules, creams, sprays | ✅ Yes | Up to 7 days | 30-day (unopened) |
| LVLUP Health | Oral Peptide Pills | Capsules, tablets | ✅ Yes | 15-30 days (intl) | 30-day (unopened) |
| Healthgevity | Oral BPC-157 & TB-500 | Capsules, tablets | ✅ Yes | Not specified | 30-day (unopened) |
| Pure Rawz | Great Selection | Injectables, capsules, sprays, tablets | ✅ Yes (older COAs) | 5-12 days | Case-by-case only |
| SwissChems | Great Value | Injectables, powders, capsules, sprays | ✅ Yes | 1-7 days | Case-by-case + lab test refund |
| Science.bio | Practitioner Trusted | Injectables, capsules, sprays, tablets | ✅ Yes | 2-8 days | 30-day (unopened) |
| Apollo Peptide Sciences | Great Value on Bundles | Injectables | ✅ Yes | 2-3 business days (USA) | Complete satisfaction guarantee |
| Core Peptides | Largest Catalog | Injectables, topicals | ✅ Yes | Same-day for orders before 1pm PST, 2-3 business days (USA) | 30-day refunds, free exchange for damaged products |
I’ve gone ahead and listed the best peptide suppliers below. You might notice that they’re also some of the best places to buy cognitive-enhancing nootropics online as well.
Also, you’ll want to use a dosing calculator before you buy peptides. That way, your peptide research goes smoothly and you order the necessary supplies.
Limitless Biotech
Form: Injectables, capsules, creams, sprays
Lab Verified: Yes
Shipping: Worldwide (flat $8.50 in USA, $13.50 international)
Shipping Speed: Under 7-days domestically, under 30-days internationally
Payment Methods: Credit card, crypto, bank wire, cash on delivery, Apple Pay, Zelle, Revolut, Cash App
Guarantees: 30-day money-back guarantee on unopened products
Other Products: Nootropics, racetams, ampakines, choline, neurogenics, naturals, anti-aging
Price + Discount (BPC-157 5mg): $84.99 with code URBAN
Rating: 4.59
Limitless Biotech (formerly Limitless Life Nootropics) has rapidly become the premier peptide source. Founded by Chris Mercer and based in Florida, LLN has a respectable collection of rare health optimization products. Although the brand name doesn’t mention peptides, their catalog currently contains 34.
Right now, it’s the best peptide company online. Home to some of the best selections of peptides for muscle growth, fat loss, performance, and more.
They are backed by experts like Dr. Bill Lawrence, Adeel Khan, Steve Horvath, researchers, institutions, influencers like Jay Campbell, Ben Greenfield, and 200+ professionals in the longevity and peptides industry.
Limitless’s website is fast and modern, but the categorization of certain products can be challenging to navigate. I recommend using the search bar to find your peptides.
Above all, LLN stocks some rare peptides as well as forms you likely won’t find elsewhere. Plus, their CEO Chris is a good guy who cares deeply about the quality and efficacy of their products.
This shop delivers globally and accepts many payment methods (Credit Card, Crypto, Bank Wire, Cash on Delivery, Apple Pay, Zelle Payment, Revolut, and Cash App). LLN has a 30-day replacement or refund policy for unopened products.
Shipping time can be a tad slow, with arrival times taking up to 7 days domestically, and up to 30 days internationally.
I’m currently running a cycle of their MOTS-c and just stocked up on their TA-1, BPC-157, Melanotan I, Epitalon, TB-500, and then the nootropics Tesofensine, Adamax, and P21.
If you’re a health professional of any kind, join their partnership program and get your clients discounts on peptides, and their other products.
Years ago, I heard several complaints about Limitless Life. Mostly regarding customer service and product information.
From my own experience and the members of peptide-centric Facebook groups I’m in, Limitless Biotech has come a long way.
Limitless Biotech is one of the first research peptide companies I’d check for a wide range of maximum-quality peptides (and unique forms) at reasonable prices.
LVLUP Health
Form: Capsules, tablets
Lab Verified: Yes
Shipping: Worldwide (free shipping for orders of $300+)
Shipping Speed: 5-10 business days (Australia), 14-30 business days (international)
Payment Methods: Credit Card, Paypal, Zip
Guarantees: 30-day returns on unopened products
Other Products: TUDCA, liver health complex, nootropics, anti-histamine, PEA, magnesium, fat burner, anti-hangover, longevity, testosterone booster
Price + Discount (BPC-157 5mg): $45.00 with code URBAN
Rating: 4.41
Nutritionist and naturopath Kyal Van Der Leest founded LVLUP Health out of personal necessity. He got sick and tried virtually every supplement and product on the market. Eventually, he discovered peptides, and they transformed his life.
Using peptides can all but require a Ph.D. They usually require injections, there’s rarely a consensus “best dose”, stability varies between peptides and even the form it’s in, and folks generally get the best results from stacking multiple peptides at once. It all gets complicated fast.
Kyal took a different approach. He looked at the main reasons people use supplements and reverse-engineered the ideal products to address specific concerns and goals.
These LVLUP Health formulas benefit from peptide synergy, the disproportionate effect of combining multiple ingredients. The “1+1=4” concept. Yielding stronger results, faster, and with fewer side effects.
Some of their products include:
- Ultimate GI Repair
- Re-Generate
- KPV
- Complete Liver Complex
- TUDCA
- Hista-Reset
- PEA
- Magnesium L-Threonate
- Exotherm
- Dihydromyricetin
Ultimate GI Repair and Re-Generate are their two flagship products.
Re-Generate is based around BPC-157 (in the highly-bioavailable Arginine Salt form). Kyal combined it with PEA (Palmitoylethanolamide) and Hyaluronic Acid (HA) to improve the peptide’s full-body effects. Plus, the added sodium bicarbonate further boosts absorption.
Re-Generate is actually a solid deal. You’re getting 15mg of the most expensive and best-absorbed form of BPC-157, Arginine Salt, that rivals any injectable. For cheaper.
Ultimate GI Repair contains the same 15mg of optimized BPC-157, in addition to Larazotide Acetate AT1001, KPV Tripeptide, Zinc Carnosine, EMIQ Quercetin, Tributyrin, Copper, and more.
Making this the most powerful gut repair supplement on Earth.
If you’re any type of health practitioner, join one of the best affiliate programs for peptides & potent supplement formulas. Your patients or clients will thank you.
If you’re still deciding between oral peptides vs injectable ones, LVLUP’s oral peptide formulas make consumption significantly easier, especially for beginners.
It’s not the cheapest, but remember prices are in AUS. LVLUP Health accepts common payment methods, including PayPal, Credit Card, and Zip (pay later).
Orders within Australia arrive in less than 10 days and international takes a bit longer, showing up 15-30 days later.
You can request the CoAs for any product, and Kyal is one of the most friendly and helpful resources in the industry.
Choose LVLUP Health for the best all-in-one, oral peptide products, each specifically formulated to improve bodily systems and overall health.
Healthgevity
Form: Capsules, tablets
Lab Verified: Yes
Shipping: Worldwide (free shipping for orders of $150+ in USA)
Shipping Speed: 2-6 business days
Payment Methods: Credit Card, Venmo, Paypal, Apple Pay
Guarantees: 30-day money-back guarantee on unopened products
Other Products: Longevity formulas, fat burner, anti-stress, nootropics
Price + Discount (BPC-157 5mg): $22.50 with code URBAN
Rating: 4.37
I discovered Healthgevity in 2025 as I began searching for vendors selling novel substances. This USA-based company has some awesome oral peptide formulas and carries rare ingredients you won’t find elsewhere.
Unlike many of the ‘peptide pills’ sellers, Healthgev understands the science well and uses multiple different techniques to maximize your absorption of oral peptides. Resulting in less precious peptide wasted.
Some of Healthgev’s peptide-based formulas currently offered contain:
- TB500/TB-4 Frag (AcSDKP)
- Thymogen
- BPC-157
- BPC-157 + KPV
- BPC-157 + KPV + PEA
- KPV + PEA
- Cathelicidin
- PeptiPump®
- PeptiStrong®
- DNF-10
- Buckwheat peptides
Healthgev uses the patented AstraGin® form of Astragalus membranaceus and Panax notoginseng to enhance absorption of peptides, amino acids, fatty acids, vitamins, and phytonutrients. In other products, they add Salcaprozate sodium (SNAC) to help peptides survive stomach acid and absorb up to nine-fold better.
To clarify the pricing math above, their BPC-157 product contains 30mg and retails for $149.99. Therefore, the cost per 5mg is $25 (or $22.50 with my discount). Still one of the better BPC-157 vendors today.
This brand offers several awesome longevity formulas targeted to specific hallmarks of aging, a solid nootropic, metabolic support, and my favorite, their anti-stress calming formula.
Some would even argue that it’s the best peptide company for beginners.
Expect to hear more about Healthgev in the future!
Healthgevity is my favorite new discovery of 2025 for unique oral peptide formulas at a decent price.
Pure Rawz
Form: Injectables, capsules, sprays, tablets
Lab Verified: Yes
Shipping: Worldwide (free shipping for orders of $99+ in USA)
Shipping Speed: 5-12 business days
Payment Methods: Crypto, Zelle, Venmo
Guarantees: Case-by-case refunds
Other Products: SARMs, nootropics, stacks, cycles, peptides, PCT/cycle support, cannabis/hemp
Price + Discount (BPC-157 5mg): $48 with code URBAN
Rating: 4.3
Pure Rawz, originally a SARMs vendor, more recently branched out into other high-performance ingredients. Including nootropics and peptides. This is another peptide company that is USA-based.
What really caught my attention, though, is the MASSIVE catalog of seemingly every hard-to-find ingredient.
Although they’ve only been in business since 2017, Pure Rawz stocks almost everything. Boasting a huge catalog of 69 peptides, including:
- BPC-157
- TB-500
- Ipamorelin
- Epitalon
- Tesamorelin
- Sermorelin
- Semaglutide
- Tirzepatide
- Liraglutide
- Retatrutide
- IGF-1
- TA-1
- Pinealon
- MOTS-c
- F0X04
- LL-37
- CJC-1295 (with and without the DAC)
- DSIP
- GHRP
- GHK-Cu
Other interesting peptides I came across include GLP-1, myostatin, GDF-8, EPO, and all kinds that I’ve never heard of! Many of these are great peptides for weight loss, muscle growth, and more.
Pure Rawz also carries peptide blends. I came across thirteen different products that contain two or three peptides within a single vial. This makes following particular protocols much easier, but with the downside of having less control over your dosages.
They’re also a reliable source for nootropic peptides like Noopepts, Dihexa, Selank, and more.
Some PureRawz peptide prices are significantly higher than average. I’d mainly choose them if you cannot find them on LLN or SwissChems. PureRawz accepts common payment methods, including PayPal, Venmo, Zelle, Mesh, and Crypto.
Domestic orders arrive in 5-12 days and international in 8-17 days. Before you order, know that PureRawz doesn’t accept returns.
Although Pure Rawz markets their products as “100% Made in America”, and claims that each batch is third-party lab testing, I noticed that some of their CoAs are older. Therefore, your product probably came from a different batch and the CoA may not matter.
Choose Pure Rawz if you’re looking for particular hard-to-find peptides, or are looking to make a broad order of performance-enhancing ingredients all in one place.
SwissChems
Form: Injectables, powders, capsules, sprays
Lab Verified: Yes
Shipping: Worldwide (free shipping for orders of $300+)
Shipping Speed: 1-7 business days (USA & Canada), 1-2 weeks (international)
Payment Methods: Bitcoin, Credit Card, Zelle, Mesh
Guarantees: Case-by-case refunds
Other Products: SARMs, nootropics, stacks, cycles, naturals, PCT, kratom, and cannabis/hemp
Price + Discount (BPC-157 5mg): $34 with code URBAN
Rating: 4.23
SwissChems is a supplier specializing in peptides, sports performance enhancers, metabolics, and nootropics.
Back when Science Biologics closed (they’re now back up and running though), I learned that SwissChems bought ALL of Science’s remaining inventory. Their catalog features 40+ peptides, some of which are uniquely geared toward athletes.
SwissChems carries most of the popular and sought-after peptides, including:
- BPC-157
- TB-500
- IGF-1
- Ipamorelin
- Epitalon
- Tesamorelin
- Semaglutide
- Tirzepatide
- Liraglutide
- Retatrutide
- CJC-1295 (with and without the DAC)
- DSIP
- GHRP
- GHK-Cu
Epitalon, BPC-157, and GHK-Cu are some of the best peptides for longevity. If your goal is slowing aging with the quality peptides, this could be a good place to shop.
You’ll also find some interesting performance enhancers here, like Erythropoietin (EPO).
Since their inventory came from the esteemed Science.bio, and they put each product through third-party testing, I trust SwissChems more than most. SwissChem lab tests their peptides, with CoAs readily displayed on every product listing.
Should you decide to test your order at an accredited third-party lab, SwissChems will fully refund your order plus testing expenses should it fail.
The products are priced competitively, and on top of that, some have bulk “kits” available which can knock another 12% off the price. This shop accepts Credit Cards, Debit Cards, Zelle, Mesh, and Cryptocurrency (Bitcoin). Payment via Bitcoin also gets you an additional 20 percent off.
They offer free shipping on major orders. It’s relatively fast, with orders within the USA and Canada arriving in 2-7 business days, and internationally within 1-2 weeks.
If you have a problem, you must submit it within 90 days of your order. Then it will be subject to approval.
Overall, SwissChems gets good reviews from longevity, nootropics, and peptides communities throughout the internet, including forums like Reddit.
If I can’t find an ingredient elsewhere, or SwissChems runs a sale, I don’t hesitate to stock up at this peptide company.
Science.bio
Form: Injectables, capsules, sprays, tablets
Lab Verified: Yes
Shipping: Worldwide (free shipping for orders of $150+ in USA)
Shipping Speed: 2-8 business days
Payment Methods: Crypto, Zelle, Bank Transfer, eCheck, Credit Card
Guarantees: 30-day money-back guarantee on unopened products
Other Products: SARMs, nootropics, botanicals, stacks, cycles, peptides, PCT/cycle support, cannabis/hemp
Price + Discount (BPC-157 5mg): $53.99 with code URBAN
Rating: 4.15
Science.bio is among the most well-respected names in clean ingredient sourcing. In fact, I know several supplement brands that purchase their raw materials directly from Science. Over the last decade, I’ve placed dozens of orders with them.
All with industry-leading purity and potency. If Science stocks it and I need it, I buy from them. Sadly, since they reopened about a year ago, their peptide selection has dramatically shrunk.
They currently stock 47 peptides, including:
- BPC-157
- TB-500
- TB-4 Frags
- Semax Acetate
- Selank Acetate
- N-Acetyl-Selank
- N-Acetyl-Selank-Amidate Acetate
- N-Acetyl-Semax Acetate (NASA)
- PE22.28
- VIP Acetate
- Oxytocin Acetate
- Alpha MSH Acetate
- Epitalon Acetate
- Adamax Acetate
- Delta Sleep Inducing Peptide (DSIP)
- KPV Acetate
- Melanotan 1 Acetate
- Melanotan 2 Acetate
- Thymosin Alpha 1 Acetate (TA-1)
- N-Acetyl-Epitalon Acetate
- Thymalin Acetate
- GHK-Cu Acetate
- ARA-290 Acetate
- LL-37 Acetate
They’re one of few vendors that carries both vial injectables (“aliquots”) and the nasal spray versions of the same peptide.
Science.bio also has several bundles of different peptides you can purchase together for a decent discount.
The downside? Their peptides go out of stock often and sometimes for long periods.
They accept most payment methods, and orders generally arrive domestically within 2-8 business days (and considerably longer for international).
Please note that all Science.bio peptides are intended for research purposes only and are not for human consumption.
Science.bio is a reliable, go-to source for ultra-premium grade peptides (and hundreds of other supplement ingredients) at decent prices.
Tier #2: Top Online Peptides Vendors
If I cannot find a product at one of my go-to peptide sellers above, then I will expand my search and accept that these ones might not be in the same premium tier.
Apollo Peptide Sciences
Form: Injectables
Lab Verified: Yes
Shipping: Worldwide (flat $9.99 in USA, free on orders $200+)
Shipping Speed: 2-3 business days (USA)
Payment Methods: Credit Card, Crypto
Guarantees: Complete satisfaction guarantee
Other Products: Bacteriostatic water reconstruction solution
Price + Discount (BPC-157 10mg): $59.99
Rating: 4
Apollo Peptide Sciences is a newer peptide supplier that’s building a reputation for combining affordability with quality.
Based in the USA, they focus on delivering essential research peptides with transparent third-party testing and responsive customer support.
Their catalog currently contains 23 peptide products, including popular options like:
- Several GLP-1 weight management peptides (Semaglutide, Tirzepatide, Retatrutide)
- BPC-157
- TB-500
They also carry performance and longevity peptides such as Epitalon, IGF-1 LR3, GHK-Cu, NAD+, and FOX04-DRI.
All products undergo third-party testing by trusted labs, with Certificates of Analysis readily available on their website.
Apollo accepts major credit cards and cryptocurrency, providing flexible payment options.
They offer competitive pricing without sacrificing quality. Their BPC-157 10mg is priced at $59.99, which is reasonable for lab-tested peptides. Free shipping kicks in at $200, and they occasionally run promotions offering 10% off plus free shipping for newsletter subscribers.
Apollo offers convenient multi-packs of their most popular peptides at discounted prices, making it easier to stock up for longer research protocols.
Apollo Peptide Sciences is a great choice if you want to stock up and save on multi-packs for the most popular peptides.
Peptide Sciences
Form: Injectables, capsules, topicals
Lab Verified: Yes
Shipping: Worldwide (flat $15, domestic orders over $200 ship free)
Shipping Speed: 2-3 business days (USA), 7-10 business days (international)
Payment Methods: Credit Card, Cash App, Zelle, Venmo, Bitcoin, Ethereum, PayPal, FLEX payment, electronic check
Guarantees: None
Other Products: Small molecules, bioregulators
Price + Discount (BPC-157 5mg): $59.50
Rating: 3.90
Peptide Sciences is among the best-known professional companies supplying peptides. They’re proudly based in Nevada, USA. Peptide Sciences has all kinds of educational resources and content to help customers choose the right product.
Not to mention, they sell just about every peptide or cutting-edge performance-enhancing ingredient known to man. Coming out to 120 different peptide products — last I counted. This is another popular vendor that also carries a wide range of peptide bioregulators.
Peptide Science carries everything the other vendors sell, in multiple forms, and in various quantities. They too, offer blends. Honestly, I’ve never heard of a large swatch of their catalog.
When I wanted to learn about Decapeptide-12, for example, the product page lists biochemistry, research applications, basic background, potential benefits, important notes, and other relevant resources. Basically, it stands as both information and a source of products.
Domestic orders over $200 ship free and fast — often arriving within 2-3 days. International orders take a bit longer, generally delivered within 7-10 business days. Shipping costs a flat $15 for all orders. Plus, customer support is useful and very responsive.
The primary drawbacks are the price of certain ingredients, the sometimes overwhelming catalog of very similar peptides (ie seven different CJC-1295 products), and lacking real-user reviews on their website. But you can find third-party reviews on forums and other sites.
Since they partner with WHO/GMP and ISO 9001:2008-approved manufacturers, you should get the highest purity and quality research-grade peptides. Peptide Sciences tests its products to guarantee a purity of 99+%.
At least, in theory.
June 2023 Update: Although they claim to rigorously test products, that may not be true. I’ve seen several unaffiliated third-party lab testing reports that show conflicting safety data. Some of the tested peptides were as low as 75% purity!
This was done by independent safety-minded biohackers. Since other companies provide the same products more affordably and at higher purities, I’ve demoted this source down a tier.
Peptide Sciences is an often-recommended place to buy peptides online if you can afford the pricier products and prioritize customer service and fast shipping — just remember that they do not accept returns!
Core Peptides
Form: Injectables, topicals
Lab Verified: Yes
Shipping: Worldwide (free shipping on orders $200+ in USA)
Shipping Speed: Same-day for orders before 1pm PST, 2-3 business days (USA)
Payment Methods: Credit Card, Venmo, Zelle, CashApp, Crypto
Guarantees: 30-day refunds, free exchange for damaged product
Other Products: Bacteriostatic water, custom peptide blends
Price + Discount (BPC-157 10mg): $52.00
Rating: 3.85
Core Peptides is a newer USA-based supplier that launched in recent years and has rapidly gained attention for combining an extensive product catalog with strong quality control.
Their catalog is impressive, featuring over 100+ peptides and blends, one of the largest selections available. This includes all the popular peptides like:
- BPC-157
- TB-500
- CJC-1295
- Ipamorelin
- Semaglutide
- Tirzepatide
- Retatrutide
Plus harder-to-find options like FOXO4-DRI, Humanin, LL-37, bioregulators (Pinealon, Vesugen, Thymagen, Epithalon), and numerous cosmetic peptides.
They also offer multi-peptide blends designed for specific research protocols, eliminating the need to mix multiple vials.
What’s particularly noteworthy is Core Peptides’ commitment to transparency and testing. They use HPLC and mass spectrometry to verify >99% purity on most products, with Certificates of Analysis available or coming soon for their entire catalog.
The primary caveat with Core Peptides is their relative newness to the market. They haven’t yet established the decade-long track record of vendors like Limitless or Science.bio.
While their current reputation is excellent and quality controls appear rigorous, long-term consistency remains to be proven. I’m keeping them on watch status to monitor continued performance.
If can’t find a peptide compound from the sources above, Core Peptides & their extensive product selection, has you covered.
Biotech Peptides
Form: Injectables, topicals
Lab Verified: Yes
Shipping: Worldwide (free shipping & bonus on orders of $200+)
Shipping Speed: 2-4 days (USA), 2-6 days (international)
Payment Methods: Credit Card
Guarantees: 30-day full money-back guarantee
Other Products: None
Price + Discount (BPC-157 5mg): $52
Rating: 3.3
Biotech Peptides is yet another popular source to buy safe and effective peptides. Although this one is usually forgotten since there are so many other great options. They’re based out of San-Diego, California.
Biotech’s catalog contains an impressive 87 peptides:
- BPC-157
- AOD-9604
- TB-500
- Fragment-176-191 (of HGH)
- Semaglutide
- Melanotan 1
- Ipamorelin
- Epitalon
- Tesamorelin
- Sermorelin
- IGF-1
- TA-1
- MOTS-c
- CJC-1295 (with and without the DAC)
- GHRP
- GHK-Cu
I found a couple of other ingredients (such as B7-33) here that very few other vendors stock. Biotech Peptides is another one that also sells a variety of multi-peptide blends.
Like most of the ones on this list, they have a purity requirement that all products must exceed at least 99%.
This shop uses multiple rounds of high-performance Liquid Chromatography and mass spectrometry to sample peptides for quality and purity (as many alternatives do). According to a rep I talked to, they’re in the midst of posting their highly-detailed CoAs to their website.
Older reviews mention a stellar money-back guarantee and unparalleled return policy. However, that’s no longer the case. Biotech Peptides does not accept returns, and any accommodations are at the discretion of the support representative.
Two things stand out about Biotech Peptides: very fast shipping and stackable discounts.
Orders placed before 1 pm PST will ship out the same day. How long they’ll take to arrive depends on your chosen shipping speed. Domestically, USPS priority takes 2-3 days and costs a flat $9.75. Overnight shipping costs a flat $45. Orders over $200 ship free and get a bonus 30ml bottle of bacteriostatic water.
You can pay via credit card (Visa, Discover, Mastercard, American Express), debit card, Paypal, or electronic check.
Biotech has an entire section dedicated to peptides on sale. If you have the patience, you can stack a promo code with heavily discounted products. Potentially netting you a 40 percent savings from retail.
When I emailed their customer service to obtain recent CoAs, I was pleased to receive a rapid and polite response.
Go with Biotech Peptides for super fast shipping, and if you find your product in the sale category (can stack that with a coupon for huge savings).
GenX Bio
Form: Injectibles
Lab Verified: Yes
Shipping: Worldwide (free shipping on orders of $150+)
Shipping Speed: 2-6 business days (USA), 8-20 business days (international)
Payment Methods: Credit Card
Guarantees: None
Other Products: Laboratory supplies
Price + Discount (BPC-157 5mg): $44.00
Rating: 3.1
Since 2013, GenX Bio has focused on creating products around neuroscience, anti-aging, and metabolic research. Like some of the others on this roundup of top peptide vendors, they’re based out of the United States.
You’ll quickly know if they carry what you seek, as the company focuses exclusively on peptides. All of which are easily found on GenX Bio’s modern website.
GenX’s website lists 43 peptides, including most of the popular ones:
- BPC-157
- TB-500
- Ipamorelin
- Epitalon
- Tesamorelin
- Sermorelin
- Semaglutide
- IGF-1
- TA-1
- Kisspeptin
- LL-37
- Melanotan 2
- P-21
- MOTS-c
- CJC-1295 (with and without the DAC)
- GHRP
- GHK-Cu
Like a few others, GenX also offers rarer performance enhancers like EPO and MK-677.
Products undergo high-performance liquid chromatography-mass spectrometry (HPLC/MS) lab testing, but I could not determine if each batch is tested separately.
Shipping is cheap and speedy. Domestic orders (free on orders of $150+) arrive within as little as 2-3 business days via Priority Mail and internationally within a longer timeframe of 8-20 business days.
Due to their semi-restrictive customs, shipping, and refund policy, I’d recommend international buyers choose a different source though.
GenX Bio has decent customer service, but unfortunately only available via email.
Ultimately, the large driver to choose GenX comes down to price. These are some of the most affordable peptides online. Especially after any coupon codes and/or sales, these prices are almost unbeatable. GenX accepts credit cards (Visa & Mastercard) and cryptocurrency (Bitcoin).
GenX Bio has the most affordable peptides with quick shipping (although international buyers should carefully review their shipping policies).
Controversial Peptide Vendors
These vendors are very popular but also get the most hate due to scams, junk products, and contamination.
Canlab Research (vs Canlab International)
Canlab Research was previously one of my top-tier recommendations given the owner is considered a leading peptide expert who synthesizes products himself and provides personalized consultations.
However, Canlab Sciences’ global operations are now temporarily under suspension by Health Canada and the Supreme Court of Quebec (CBC, SQA).
More importantly, this is not to be confused with Canlab International which currently brands itself as a research peptide provider and is referenced in professional/education contexts, not in enforcement bulletins.
Unfortunately, while Canlab International has no direct Health Canada warning, they share a confusingly similar name with another that does.
If operations resume and regulatory issues are resolved, Canlab Research could potentially return to top-tier status given their previous reputation for quality and expertise
American Research Lab
American Research Lab (although the banner on their site shows “American Research Labs”) is a no-frills peptide and research chemical supplier that was once popular in online communities due to their rock-bottom prices. The website was functional but outdated. Now, it seems to have gone offline (no idea if permanently or temporarily).
They claim to manufacture peptides in the USA and to independently lab test each batch. Each product is guaranteed to meet a purity standard of 98.6% or greater. I doubt it. Everything about this vendor screams red flags. First, the website (”www.americanresearchlabs.com”) doesn’t exist and redirects to Google.
ARL is registered to the company “JKB Services, LLC” which appears to be a real estate group. The support line goes to a voicemail box. They never returned my call.
The internet is full of mixed reviews. In my younger years, I used ARL for one reason — price. The price simply cannot be matched. I purchased five vials of Melanotan II and they certainly worked! All in all, my order came out to less than half the cost of other popular peptide sellers.
I would never use them again because safety is the most important consideration with injectables.
Paradigm Peptides
When I researched this company, I came across mixed ratings. Though they list a 4.6-star user rating on their site, third-party reviews peg them closer to the 4.1-star level. I find these tactics deceptive (yet common), and a red flag of the company’s legitimacy.
Now, their site is closed, and mentions that Paradigm Peptides has ceased operations. Be careful about products that are claimed to be from this company.
Blue Sky
Blue Sky Peptides is known as a budget-friendly peptide source. Yet for every positive review and testimonial I came across, three to four mentioned seriously terrible experiences. Ranging from the company ignoring their emails, to junk products and even outright scams. People paid and received literally nothing. These products certainly come from China, and are not batch-tested for safety. BSP just white-labels vials with their logo.
I suspect that the positive reviews are from employees of the company. Check out this Reddit thread, or their Trustpilot for a small sample of the deception.
Peptide Warehouse
Peptide Warehouse is another seller that spends heavily on marketing and ads. You’ll see this name come up all the time in discussions of low-cost peptide vendors. I dislike just about everything about this company. From cartoonish aesthetics to deceptive marketing. The HPLC “lab test” results proudly displayed on their page are old. Way back from 2014!
Other user reviews echo the same. In recent years, PW has gone downhill. Products often don’t arrive, what does arrive is under-dosed or something different entirely, and most customers will not purchase from them again.
The only thing Peptide Warehouse has going for it is BOGO sales and many payment methods (Venmo Payment, Apple Pay, G-Pay, Bitcoin, and Cash App).
Umbrella Labs
I hadn’t heard of this company until recently, but they seem to stock countless peptides, nootropics, SARMs, and other research chemicals. After about five minutes of research, I could tell that this isn’t a company I’d trust my wealth with. Originally, their website claimed 100% purity. Which is physically not possible for any vendor in the world.
Their third-party reviews are quite mixed, and many of the positive ones have all the hallmarks of a bot. Umbrella Labs also got this warning letter from the FDA for selling contaminated products.
Chemyo
For whatever reason, people keep putting the research chemical company, Chemyo, into lists of the top peptide vendors. This brand sells SARMs and nootropics, but not peptides. While they’re well known on Reddit as a reputable SARM vendor, they simply do NOT sell peptides.
Therefore, do not buy peptides through Chemyo as they are probably a scam.
How We Rank The Best Peptide Sellers
Peptides are not sold for human consumption but rather as research chemicals. Therefore, they’re mostly exempt from regulation by the FDA or other governing bodies.
Therefore, it’s vital to do your diligence before purchasing peptides. Note these factors when evaluating the best (and worst) places to buy peptides online:
- Reviews. Look for recent reviews on less biased third-party platforms like Reddit, Trustpilot, and the BBB.
- Lab testing. If you can’t find test results on their website, email support requesting a copy. Check the analysis date. Call the certifying lab to confirm if you’re suspicious.
- Transparency. While not always true, companies that give more information about their methodologies, processes, and policies are more trustworthy.
- Media presence. Do the owners disclose their identity anywhere? Does the company have active social media profiles?
- Guarantees. Does the brand offer any reassurances of satisfaction such as return/refund policies?
- Payment options. Unless you’re sure, avoid companies that only offer irreversible payment methods (Bitcoin, bank transfer) until you’ve used them before.
- Price. Of course, we all want to pay the least for the highest quality product. Products priced drastically lower than others indicate the company is likely taking a shortcut somewhere.
Also, watch for subtle scams. For example, if the company sells peptide troches/biostrips. These usually have 10% the efficacy of the injectable, and cost 2-10X more per dose. Factors like peptide stability, molecular mass (Daltons), and peptide chain length determine how effective they will be.
Many vendors put profit first, and will sell you peptide troches that simply don’t work.
Now, none of these guarantee quality. Companies can create fake Reddit accounts, for example.
There are legitimate peptide companies with CoA but there are also some that alter their CoAs with Photoshop. CanLab Sciences, for example, is well-respected but has limited info on its website.
Rather, these are rough guidelines I use to semi-reliably gauge the quality of a peptide source in just a few minutes.
Buying Peptides Online FAQ
Are peptides legal to buy online?
Research peptides are legal for lab use only. They are not regulated for human consumption. Therapeutic peptides require medical supervision. An FDA crackdown began in late 2024/early 2025, with enforcement deadlines in April-May 2025, creating a gray area for research suppliers.
What’s the difference between research and therapeutic grade peptides?
Research peptides are “not for human consumption” and unregulated. Therapeutic grade peptides are FDA-approved or physician-compounded with sterility guarantees and medical oversight.
How do I verify peptide purity and quality?
Look for third-party HPLC testing, batch-specific Certificates of Analysis (COAs), and independent vendor rankings. Avoid vendors without testing documentation. Even this is imperfect, as testing often only screens for specific substances/impurities and often isn’t batch specific.
What payment methods indicate legitimate vendors?
Established vendors accept multiple methods including crypto, Zelle, and often traditional payments. Credit card restrictions are common due to processor policies, not vendor legitimacy concerns.
How do I verify a peptide vendor’s reputation and track record?
Check third party ratings, Reddit community feedback, and years in operation. Also look for consistent CoA availability, website maintenance, and responsive customer service. Vendors with only a single payment option can also indicate higher risk.
Which vendors specialize in oral vs injectable peptides?
Oral specialists include: LVLUP Health, Healthgevity (SNAC technology), Limitless Biotech.
Injectable leaders: Limitless Biotech, Swiss Chems, Science.bio
Why do many legit peptide vendors only accept Bitcoin/crypto payments?
Traditional payment processors classify peptide sales as “high-risk,” frequently closing merchant accounts. Crypto payments bypass banking restrictions and provide transaction privacy for both vendors and customers.
The Only Reputable Peptides Companies?
Peptides and other small molecules show tremendous promise and success in optimizing health and accelerating outcomes.
For the biohackers and early adopters, peptide therapy is delivering transformational results. But it’s still in its infancy. For help choosing a particular product, check out my quick guide to the best therapeutic peptides to optimize your health and performance.
There’s no “Amazon of peptides”, and most health and wellness companies will avoid this market due to regulatory uncertainty.
Because of that, prices are high. Enticing low-to-mediocre quality vendors to spin up a website and start profiting. Unfortunately, in many cases, low-quality peptides do more harm than good.
Peptides are extremely fragile molecules and are usually rendered inert by stomach acid or the skin. So we rely on injections.
Injections bypass many of the body’s defense systems and mechanisms. With impure products, you’re driving heavy metals, contaminants, and toxicants straight into the body. Potentially devastating your health and well-being.
Wondering where to buy peptides online?
When I was younger, I used some cheap peptides. Although I’m still standing, saving a few bucks isn’t worth the potential lifelong consequences. So in most cases, I recommend steering clear of questionable injectables.
There are a few companies like LVLUP Health and Healthgevity that make powerful oral peptide capsules. Or you can try a special subset of peptides that work on the DNA level to stimulate bodily regeneration. Check out my guide to the best bioregulator peptides here.
Many of the top recommendations are compound pharmacies only available to practitioners. And they’re often incredibly expensive.
Few trustworthy vendors have built long-lasting reputations by providing biohackers and peptide enthusiasts with quality products. So when it comes to the top sources, I am quite careful.
If possible, stick to the first tier of my list above.
But I’m curious…
Am I missing any top-notch online peptide sources? Let me know your experience in the comments below!
Thanks for sharing! Any thoughts on eliteresearchusa? A lot of the folks I follow on X promote them
Hey Luke! Thanks for sharing. Looks pretty basic but they do carry some harder to find RCs too. Do you know what they like about them? Seems that they have a heavy X-based marketing campaign. Some of the independent third-party testing results I’ve seen of theirs were not impressive. Especially of some of the staples and GLPs.
What do you think about Make Well? https://meet.makewellness.com/
Hi Kate,
Maybe I missed it, but their products don’t look like they contain peptides.
Hey Nick,
Thanks for such a comprehensive guide. I’m looking for an alternative to Peptide Science to order Retatrutide. My mom found Direct Peptides and said her Retatrutide was cheaper there. But I don’t see much about the company and I didn’t see them on your list.
So I started looking on your top tier recommends and neither Limitless or Swiss carries Retatrutide. And I couldn’t find Terzepatide either. Is there some going on or am I just daft. I used the search function on both sites.
Hi Erica,
You’re very welcome! I hadn’t heard of Direct Peptides. I can look into them. There are two things to know about buying tirzepatide and retatrutide online. First, many vendors will label them something like “T” for tirzepatide and “R” for retatrutide. They’re the same thing. If they lab test their products (they all should), you should see the actual peptide name there. Second, some vendors show these higher-risk peptides to “VIP” (usually free) or registered members. If you’re not logged in, you might not see them at all.
Does that make sense?
Nick
Hi Nick, I’m so glad I came across your article! Great info. I’m trying to look at Limitless but the site is not working at the moment.
I was wondering if you knew anything about Researchchem.com and nuscience.com. I’m pretty new to this and can’t spot the bad apples from the good ones. Thank you
Hey Yvonne, thanks! Are you sure? Limitless loaded for me just now. I looked into those 2 you mentioned. NuScience doesn’t sell peptides from what I can see. Researchchem didn’t load.
I appreciate your fast response!!
I got onto Limitless later last night and was able to place an order. Thanks!
Sorry I wrote the website wrong. It’s nusciencepeptides.com
The other one is researchchemhq.com
I just checked and it loaded for me. Maybe it was down for maintenance?
Got it! So I glanced at the NuScience. Multiple red flags. No 3rd party lab testing CoA results available on the products I checked. That alone is enough that I certainly wouldn’t use them. Some very cheap prices too, which can be nice, but almost guarantees they’re taking shortcuts somewhere. Even the copyright at the bottom of their website is outdated.
Are you referring to Researchchemhq.com or their Researchchemhq.co website? The .com doesn’t sell anything. I find it weird that they have the 2 nearly identical websites. Again, the products are suspiciously cheap. Especially for the claimed purity. I also see one big concern about the product testing. There’s also almost zero (unsponsored) third party reviews/content about them. I did come across a few negative reviews too. Might be okay, but not something I’d use. Just my $0.02
Hey Nick. What do you think about these?
VerifiedPeptides.com
Happypeps.com
libertypeptides.com
I’ve ordered from all three and started my research. Some of the products I’ve received seem to be working as they should, however a couple of them don’t seem to do anything at all.
Just recently I’ve ordered 2x Reta 10mg from happypeps for about $45 a piece. Received the vials, but haven’t tested them yet. I’m very suspicious of this product since the price seem to be way too good for a real Reta.
Hey Stan!
Hadn’t heard of those first 2. I have heard of liberty though. Hmmm yeah those prices are very suspicious. I’d be concerned about the health of your lab animals with Reta that’s so cheap. It has been a few weeks, any updates?
Nick
So I ordered serm/ipa blend 10mg (5 and 5 mg) from LIBERTY PEPTIDES. I received my order next day in a nice kit. The price was great, but not for most other popular peptides. Have you heard anything at all on these guys? And I love the article.
Appreciate the feedback, Joey. It’s interesting that each company seems to have good prices for just a few peptides, and very expensive for others. I haven’t yet. I spot checked 2 random CoAs and they seemed to be real. How did you find them?
Hello Nick,
Thank you for putting this great information together!! Are you familiar with Simple Peptide? The prices are Amazing!! But, Is the product good? https://simplepeptide.com/
Hi Nadine! I hadn’t heard of them, but I briefly looked into them and am a little suspicious. They claim to have launched in 2023, but there’s no evidence on the internet archive that they even had a website until 2024. Their website brags that they are the only ones using Zendesk for support (not important at all, many other companies respond to email quite quickly). Their social links are broken. Perhaps most concerning, are the reviews. I’ve read a large handful that complain that they have bad reactions/no effect from the same peptide that they previously ordered from other vendors.
I also spot checked a few peptides. This one doesn’t even list them as the client, and there’s no verification feature, so who knows if the CoA is even of their product https://i0.wp.com/simplepeptide.com/wp-content/uploads/2024/07/IGF-LR3.webp?fit=650%2C798&ssl=1
If you do use them, make sure the bottle label matches whatever you see on the CoA, at the very least!
Thank you for taking the time to look into this site! Your time and Great information are
Greatly Appreciated!
You’re very welcome! Thanks 🙂
Have you heard anything about Paramount Peptides? I just ordered 24 mg of Retatrutide. Limitless Life Nootropics is always sold out of practically everything I want.
Howdy, Brenda. Ah, Limitless makes certain (popular) products available only to VIPs. You can sign up here. I think I have heard of them. I looked into them a little, and there’s not as much information about Paramount as I would hope. They’re definitely pretty new, with their website coming online only in mid-2024. They do use Janoshik for 3rd party testing, which I like. Some of the Paradigm tests are recent too (May 2025). Their social media presence is questionable. They do use Judge.me so that user reviews on their website should be legit. Overall, not my first pick. I’d scour the web for more info and case reports first.
Okay. Thanks so much for your info. It helps me feel better in spite of the questionable social media presence.
You’re welcome, Brenda! Please report back and let us know how whatever you chose went.
What about D’speptides? any info?
Hey Debbie! Great question. The D-enantiomers of peptides are more stable than normal L-peptides. Thus, also stronger. Personally, I don’t like them because they aren’t really naturally occurring and have almost no human data on them. Any in particular that you’re researching?
Last one for me. Have you heard of Xcel Peptides? They are on the cheaper end.
I read somewhere that Janoshik testing is top of the line and they have 3rd party testing from him.
Hey Robert. I have, actually! I emailed them several times over the last few months and haven’t heard back… concerns me a bit. Messaged them again and will let you know what I hear back. You’re spot on that Janoshik testing is reputable. I spot checked 2 products on the Janoshik official site and the results were legit!
Thanks for the response. It seems like my research is paying off
Why is it then that using the verification link at the bottom of each COA gives “ Invalid” across all fields when using the very information that is provided on the various sites using Janoshik. I do not trust any COA when it shows Janoshik.
Hey Sharon,
Make sure you’re putting in the right codes. That’s what happens when you enter something wrong. If you put the link to a particular product here, I can help you. Janoshik is widely considered one of the most reputable third-party labs. Who do you prefer?
HELLO! HAVE YOU EVER HEARD OF POPULAR PEPTIDES?
Hi Terresa, I haven’t! Do you have a link for me to check out?
Have you heard of Modern Aminos?
They have a bpc stack capsule version.
I hadn’t! I checked it out and am suspicious. Prices are too cheap for ingredients that virtually no one stocks. Zero about me or social presence. I’m not sure if you checked out their CoAs, but they failed potency (dose) and purity for BPC-157 powder/capsules.
Have you actually seen the comments online about PureRawz? Many do not receive their orders and if they do it is often delayed by months….
https://www.reddit.com/r/PureRawzResearch/comments/1950iwt/an_honest_review_of_purerawz_quality_products/?sort=new
Hi. Yeah, I’ve seen some of the comments. I also have ordered from them multiple times and know others (unaffiliated) that do too and haven’t had any issues. I did see on their website a while back that they explicitly mentioned big shipping delays of 4-6 weeks. They sent an email about it too.
I’m not sure if you are aware, but that post you linked is 100% written by AI. Actually that entire sub is full of AI posts.
If you find any folks that claim to have never received their orders. and that will provide their order # (as they’ve requested on Reddit), I’ll certainly reach out to them and ask for proof of delivery.
Thanks for all this information.
Have you had any experience with Xcel Peptides.com? They seem to have a large selection of peptides.
Hey Dwayne,
You’re welcome! No I haven’t. Do you use them? I noticed that they say that they sell 3rd party tested, but the products I looked at only had the dosage test. Nothing about potential heavy metals and other contaminants.
Nick
I have no affiliation to them but I’ve been extremely impressed with Umbrella Labs. I’m a long time Limitless researcher and I back your comments about them 100%. I do like Amino Asylum and really they are a good foundational spot to start but definitely have room to “grow”.
Bad experience with Pureraw. Paid with crypto… never again unless I’m dealing with someone in the states that accepts credit cards. I’ve ordered with Biotech Peptides and my experience has been the complete opposite.
Thank you for taking the time to research and provide this info. It seems to be a wild Wild West of trusted and not trusted peptide sites out there right now. Wish we had more ways to know for sure who to trust.
Hey Jessica! You’re right. It really is, and me too. This is one arena where some regulation WOULD be quite helpful.
I just ordered from Peptide Shop. Because Peptide Sciences was out of 10mg
They are pressing me for a review. I haven’t even used it yet
Hey Claudia. Which “Peptide Shop” was this? And what did you order 10mg of?