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10 Top Online Peptide Companies [2023 Review & Comparison]


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Peptides are among the most effective health transformation compounds on Earth.

Since they’re naturally produced in your body and also used to build proteins, quality peptides also have an unparalleled safety profile.

Therein lies the issue.

Locating top-quality peptide sources online is quite difficult. To make matters worse, like most alternative health products, the FDA doesn’t regulate or quality control these.

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 vendors so that you can make your optimal choice.

Skip To Top Peptide Seller Reviews

Best Overall: Limitless Life Nootropics
Great Value: SwissChems
Most Options: Pure Rawz
Doctor Trusted: Peptide Sciences
Biohacker Favorite: CanLab Sciences

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.

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.

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. 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.

Limitless Life Nootropics

BEST OVERALL
LimitLess Life Nootropics Peptides Review

Overview

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: 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): $29.75 with code URBAN

Rating: 4.5

LimitlessLife Nootropics is a newer but rapidly growing peptide supplier. 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.

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 that cares deeply about the quality and efficacy of their products.

This shop delivers globally, and accepts many payment methods (Crypto, Bank Wire, Cash on Delivery, Apple Pay, Zelle Payment, Revolut, 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.

Years ago, I heard several complaints about LimitlessLife. Mostly regarding customer service and product information. From my own experience and the members of peptide-centric Facebook groups I’m in, LLN has come a long way.

LimitlessLife Nootropics is one of the first vendors I’d check for a wide range of quality peptides (and unique forms) at decent prices.

Use the exclusive code URBAN for 15% off

Pure Rawz

MOST OPTIONS
Pure Rawz Peptides Review

Overview

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): $57.50 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
  • 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!

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.

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.

Use the exclusive code URBAN for 10% off

SwissChems

GREAT VALUE
Swiss Chems

Overview

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): $33.26 with code URBAN

Rating: 4.1

SwissChems is a newer supplement supplier specializing in peptides, sports performance enhancers, metabolics, and nootropics. Back when Science Biologics closed, 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
  • CJC-1295 (with and without the DAC)
  • DSIP
  • GHRP
  • GHK-Cu

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.

Use the exclusive code URBAN for 15% off

CanLab Sciences

BIOHACKER FAVORITE
CanLabs

Overview

Form: Injectables

Lab Verified: Yes

Shipping: Worldwide (flat $30 to USA)

Shipping Speed: Unknown

Payment Methods: Bitcoin, Wise/Bank transfer

Guarantees: 14-day returns on unopened products (you pay shipping & handling)

Other Products: Small proteins, bio-regulators, consultations

Price (BPC-157 5mg equivalent): $55

Rating: 4.4

CanLab, recently rebranded to CanLab Sciences, is the most customer-centric peptide seller on the internet. The owner, Jean-François, is widely considered one of the most knowledgeable peptide experts. Right alongside Dr. William Seeds. Jean-François frequently lends his expertise to Facebook groups and as a guest on podcasts.

This vendor does two things and does them world-class: small proteins and bio-regulators.

CanLab stocks 62 peptides and small molecules, including:

  • BPC-157
  • TB-4
  • TA-1
  • Epitalon
  • MOTS-c
  • Melanotan 2
  • GHK-Cu
  • Kisspeptin
  • LL-37
  • Pinealon
  • Vesugen
  • Thymogen
  • DSIP
  • Ipamorelin
  • Humanin
  • CJC-1295 (with and without the DAC)
  • GHRP

There are several things notable about CanLab. First, they offer multiple different fragments of TB-4. That’s because each fragment has different (targeted) benefits.

Second, CanLab sells various bioregulator peptides. Third, CanLab chose not to use the industry-standard filler, mannitol, in their peptides. Additionally, you’ll notice that they sell vials containing peptide combos.

Despite all of that, the prices are still affordable.

The website itself is difficult to navigate and lacks information. Without knowing the background, you’d have no idea that this is a credible vendor. The only clue would be the Facebook page’s 2.9K likes, 3.3K followers, and glowing reviews in the comments.

Jean-François prefers to keep it this way though, as he does the peptide synthesis himself and relies exclusively on word-of-mouth advertising. That way, he can keep up with demand. Should you want help with anything regarding peptides, Jean-François is one of the only (if not the only) vendor that provides consultations.

CanLab ships where legal, and unfortunately effective now (October 2022), they can no longer supply the Canadian Market.

Shipping timing is somewhat of a black box, as it differs from one region to another and CanLab Sciences does not list shipping info on their website. Shipping price is quite expensive, costing a flat $30 to the USA. Payment methods are limited and include direct bank transfer or payment via cryptocurrency (Bitcoin).

Should you decide, you can request a return on any opened products within 14-days of your order delivery. You just pay shipping & handling.

If you can overlook the poor UX and limited company information on their website (you’ll find more in Facebook groups), CanLab Sciences is perhaps the most trusted of all over-the-counter peptide sources.

Peptide Sciences

TRUSTED BY DOCTORS
peptide sciences e1666898025705

Overview

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 (BPC-157 5mg): $59.50

Rating: 4.5

Peptide Sciences is among the most professional companies supplying peptides. They’re proudly based in Nevada, USA, and considered by many to be a one-stop go-to. 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 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.

Since they partner with WHO/GMP and ISO 9001:2008 approved manufacturers, you know that you’re getting the highest purity and quality research-grade peptides. Peptide Sciences rigorously tests its products to guarantee purity of 99+%.

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.

Peptide Sciences is one of the top places 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!

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.

Biotech Peptides

Biotech Peptides

Overview

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 (BPC-157 5mg): $48

Rating: 3.9

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

GenX Peptides

Overview

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 (BPC-157 5mg): $44.00

Rating: 3.7

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).

Use the exclusive code URBAN for 10% off

Tier #3: Other Good Peptide Vendors

Finally, these are the peptide vendors I would consider but would want to see credible third-party testing first.

Paradigm Peptides

Paradigm Peptides

Overview

Form:

Lab Verified:

Shipping: Worldwide (Free shipping for orders of $50+ in USA, $200+ international)

Shipping Speed: 7-10 business days

Payment Methods: Zelle, Cash App, Bitcoin, other cryptocurrencies

Guarantees: Case-by-case refunds

Other Products: SARMs, lab supplies, nootropics, CBD/hemp

Price (BPC-157 5mg): $48.00

Rating: 3.7

Established in 2014 in the American city of Chicago, Paradigm Peptides focuses on providing customers with quality research ingredients like peptides, SARMs, and nootropics. Paradigm has useful educational content throughout their site, which overall is easy to use.

Finding and buying their peptides, however, is a bit more challenging. For some reason, they’re one of few companies that don’t have a search function. The page layout and inconsistent product titling make it even more difficult to find specific products.

Paradigm Peptides offers 26 peptides, including:

  • BPC-157
  • TB-500
  • Thymalin
  • TA-1
  • DSIP
  • Epitalon
  • GHRP
  • GHK-Cu
  • Hexarelin
  • CJC-1295 (with the DAC)
  • IGF-1
  • Ipamorelin
  • Melanotan 2
  • Tesamorelin
  • Sermorelin

Paradigm does have a few blends listed as well. Safety-wise, they put their products through COA, HPLC, and Mass Spectrometry testing and reporting. You’ll have to reach out to their support team for a copy, as they change too often to post.

They claim that all peptides are “pharmaceutical-grade”, exceeding 98% purity (and mostly >99% purity). Paradigm goes the extra step to ensure the potency and safety of their peptides. They remove trifluoroacetic acid (TFA) which is caustic to human tissues. They pH-balance the final product to minimize bodily irritation and improve reconstitution. Then Paradigm vacuum-seals their peptides, to protect against degradation and oxygenation.

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.

Paradigm Peptides has multiple payment options, including credit cards (Visa & Mastercard), e-checks, cash app, and cryptocurrency (Bitcoin). Although in some instances, payment via credit card may not be available. Shipping time and price varies dramatically with location. For me, Priority Mail cost $10 while Priority Mail Express came out to $30. International customers can expect to pay $40 or $70 respectively. Many reviews mention the shipping speed as a major plus. Refunds are subject to return shipping charges and a 15% restocking fee — IF they accept your request.

Their support team gets back to customers fast. I received a response to my email requesting lab testing data within the hour. Luckily, they’re one of few to also offer live phone support.

Paradigm Peptides is an option for folks that are sensitive to peptide injections, prioritize fast shipping, or want to chat with a live customer service agent.

Amino Asylum

Amino Asylum e1666905529682

Overview

Form: Injectables, sprays

Lab Verified: No

Shipping: USA (flat rate $9.99)

Shipping Speed: 2-4+ days

Payment Methods: Credit Card, Zelle, Cash App, Venmo

Guarantees: None

Other Products: SARMs, aminos, gym wear, pro-hormones, research chemicals, research oils

Price (BPC-157 5mg): $34.99

Rating: 3.3

Beginning in 2018, Kentucky-based Amino Asylum has provided the industry with research chemicals, aminos, peptides, SARMs, and prohormones. Few companies provide such variety of small molecules and injectables.

In addition to their catalog of 18 peptides, as their name suggests, Amino Asylum sells 23 injectable amino acids. Products include:

  • BPC-157
  • HCG
  • TB-500
  • Melanotan 2
  • Fragment-176-191 (of HGH)
  • CJC-1295 (without the DAC)
  • GHRP
  • IGF-1
  • PT-141
  • MOTS-c
  • Semaglutide
  • Ipamorelin
  • B vitamins
  • Vitamin D
  • BCAAs
  • L-Carnitine

Surprisingly, Amino Asylum sells blends containing up to nine different peptides and aminos all in one vial. They’re best known for these all-in-one combinations as well as their peri-cycle support. Folks using exogenous hormones frequent AA.

Although their site is easy to navigate, I’m unimpressed by the lack of transparency into their processes and methodologies. I couldn’t find any of the usual pages like “FAQs”, “About Us”, “Testing Results”. Here lies the problem. I’ve scoured their website and the internet for the results of their HPLC tests and/or CoAs. I found nothing. The logical conclusion is that Amino Asylum doesn’t have quality control processes.

Perhaps that’s why their peptides and aminos are so affordable. Without testing, they can pass those savings on to customers.

At the same time, most independent user reviews come back positive. Scroll through a forum like Reddit and that is quickly apparent.

Since you have no clue what you’re actually consuming (you can slap a label on anything), Amino Asylum I recommend choosing a labtested vendor if you can afford it.

American Research Lab

ARL

Overview

Form: Injectables

Lab Verified: No

Shipping: Worldwide (flat rate of $25.40 in USA, $74.95 internationally)

Shipping Speed: Unknown

Payment Methods: Bitcoin, Cash App, Venmo

Guarantees: 30-day money-back guarantee

Other Products: SARMS, research chemicals

Price (BPC-157 5mg): $24.99

Rating: 2.8

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 is functional but outdated.

ARL carries a usual lineup featuring about 22 peptides:

  • BPC-157
  • TB-500
  • Melanotan 2
  • DSIP
  • Epithalon
  • GHRP
  • Fragment-176-191 (of HGH)
  • CJC-1295 (with and without the DAC)
  • IGF-1
  • GnRH
  • Hexarelin
  • Ipamorelin
  • Oxytocin
  • PT-141
  • MOTS-c
  • Sermorelin

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”) listed on their “Terms & Conditions” page 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 footer hasn’t been updated since 2019 and 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, my order came out to less than half the cost of other popular peptide sellers. Even after I paid the flat $7.90 domestic shipping. I did add a hefty discount code which you’ll sometimes get in their email newsletter.

Although I’ll never use them again because safety is the most important consideration with injectables, those on a super-tight budget may consider ARL. In that case, I’d recommend pooling funds with a friend and getting your batch tested.

ARL is only for those with absolutely no budget for peptides and are willing to do safety testing themselves.

Controversial Peptide Vendors

These vendors are very popular, but also get the most hate due to scams, junk products, and contamination.

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, 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).

How to Avoid Peptide Scams

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:

  1. Reviews. Look for recent reviews on less biased third-party platforms like Reddit, Trustpilot, and the BBB.
  2. 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.
  3. Transparency. While not always true, companies that give more information about their methodologies, processes, and policies are more trustworthy.
  4. Media presence. Do the owners disclose their identity anywhere? Does the company have active social media profiles?
  5. Guarantees. Does the brand offer any reassurances of satisfaction such as return/refund policies?
  6. Payment options. Unless you’re sure, avoid companies that only offer irreversible payment methods (Bitcoin, bank transfer) until you’ve used them before.
  7. 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.

Now, none of these guarantee quality. Companies can create fake Reddit accounts, for example. Some doctor 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.

The Only Trustworthy Places to Buy Peptides Online

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.

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 supplying products. Unfortunately, in many cases, low-quality peptides do more harm than good.

Peptide are extremely fragile and 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.

When I was younger, I used some questionable 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 injectables.

Many of the top recommendations are only available to practitioners. And they’re often incredibly expensive.

Few trustworthy vendors have built long-lasting reputations by of 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!

Nick Urban

Nick Urban is the Founder of Outliyr, an expert biohacker of 10+ years, Data Scientist, Certified CHEK Practitioner, host of the Mind Body Peak Performance Podcast, and a High-Performance Coach.

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