CJC-1295

CJC-1295 is a 30-amino-acid GHRH analog that stimulates pulsatile pituitary GH release. Teichman 2006 (J Clin Endocrinol Metab, n=21 single-dose PK with DAC) showed 2-10x GH elevation and 1.5-3x IGF-1 sustained 9-11 days. Ionescu 2006 confirmed pulsatile GH secretion under pulse-dose stimulation. No Phase 3 exists; body-composition claims extrapolate from tesamorelin class.

CJC-1295 scored 6.0 / 10 (๐Ÿ‘ Worth trying) on the BioHarmony scale as a Substance โ†’ Peptide โ†’ Growth / Repair Peptide.

Overall6.0 / 10๐Ÿ‘ Worth tryingGood for the right person
Body Composition / Fat Loss 6.0 Hormonal / Endocrine 5.5 Muscle Growth / Hypertrophy 5.5 Sleep Quality 5.0 Sleep Architecture (Deep/REM) 5.0
๐Ÿ“… Scored April 2026ยทBioHarmony v0.5

What It Is

CJC-1295 is a synthetic 30-amino-acid analog of growth hormone-releasing hormone designed to stimulate pituitary GH release. It was developed by ConjuChem, a Canadian biotech, in the mid-2000s. The defining innovation was the drug affinity complex (DAC), a maleimidopropionic acid residue that covalently binds serum albumin and extends circulating half-life from minutes to 7-10 days. Teichman 2006 was the first and last major human trial: 21 healthy adults receiving single-dose escalations saw 7.5-fold GH AUC increase and 9-11 day IGF-1 elevation. Ionescu 2006 confirmed pulsatile GH secretion was preserved. ConjuChem then went bankrupt after a Phase II subject (Gene Larew) died; the program never reached Phase III.

Two formats exist in the gray market: with DAC (sustained, 1-2 mg weekly) and without DAC, marketed as Modified-GRF 1-29 or Mod-GRF, which retains the original GHRH 1-29 sequence without the albumin-binding residue and has a sub-30-minute half-life. Community practice has largely shifted to no-DAC + ipamorelin stacks since roughly 2015 on the theory that pulsatile GH biology (matching endogenous secretion) is safer than sustained IGF-1 elevation over 9-11 days per dose. Biohackers use it primarily for body composition, sleep quality, and recovery from training. Body composition claims rely on tesamorelin (the FDA-approved GHRH analog) class data, not on any CJC-1295-specific trial.

Type: Peptide (GHRH analog; gray-market research peptide with and without DAC [drug affinity complex] covalent albumin binding for half-life extension).

Current status: Gray area. Not FDA-approved. Not DEA scheduled. Sold as "research chemical" by peptide vendors at $80-200 per month. Not available through regulated US pharmacies. Tesamorelin (the FDA-approved GHRH analog in the same mechanistic class) is available by prescription and through some compounding pharmacies.

Terminology

  • CJC-1295: The synthetic 30-amino-acid GHRH analog developed by ConjuChem (hence "CJC"). Two variants exist: with DAC and without DAC.
  • DAC (drug affinity complex): A maleimidopropionic acid residue appended to the peptide that covalently binds cysteine-34 of serum albumin, dramatically extending circulating half-life. DAC is what distinguishes "CJC-1295 with DAC" from Mod-GRF 1-29.
  • Modified-GRF 1-29 (Mod-GRF): The no-DAC variant, identical to the first 29 amino acids of endogenous GHRH with minor modifications to resist enzymatic cleavage. Half-life under 30 minutes.
  • GHRH (growth hormone-releasing hormone): Hypothalamic peptide that binds pituitary GHRH receptors to trigger pulsatile GH secretion. The endogenous molecule CJC-1295 mimics.
  • GH (growth hormone): Pituitary peptide hormone released in pulses, peaking during early slow-wave sleep. Drives hepatic IGF-1 synthesis and direct tissue anabolism.
  • IGF-1 (insulin-like growth factor 1): Hepatic peptide downstream of GH. Mediates most anabolic and mitogenic effects. Chronic elevation is the cancer-risk pathway (RR 1.2-1.5x per SD).
  • Ipamorelin: Selective ghrelin-receptor agonist with no cortisol or prolactin cross-reactivity. The standard stack partner for CJC-1295 because GHS-R and GHRH-R activation synergize.
  • ADAs (anti-drug antibodies): Immunogenic response against the foreign peptide, flagged by Sackmann-Sala 2015 as a class-wide GH-secretagogue concern.
  • Somatostatin: Hypothalamic peptide that inhibits GH release. Negative feedback loop that adapts to sustained GHRH stimulation, one rationale for cycling.
  • Pulse amplitude: Height of an individual GH secretory pulse. GHRH increases pulse amplitude without changing pulse frequency.
  • Gray-market: Not FDA-approved, not DEA scheduled, sold as "research chemicals" outside the regulated pharmacy system.

Dosing & Protocols

Dosing information is summarized from published research and community reports. This is not a prescribing guide. Consult a healthcare provider before starting any protocol.

DAC variant creates sustained non-pulsatile IGF-1 elevation for 9-11 days per injection, which diverges from endogenous GH biology. Community has largely shifted to no-DAC Mod-GRF 1-29 + ipamorelin for perceived safety despite zero head-to-head RCT evidence favoring either format.
View 2 routes and 4 protocols

Routes & Forms

RouteFormClinical RangeCommunity Range
Subcutaneous injection (with DAC, weekly)Reconstituted lyophilized peptide, 2 mg vial typical 30-250 mcg/kg single dose (Teichman 2006 Phase I escalation) Only published human data is single-dose PK escalation; no chronic-dosing Phase III 1-2 mg once to twice weekly Community biohacker protocol; sustained non-pulsatile IGF-1 elevation is the concern driving shift toward no-DAC
Subcutaneous injection (no-DAC / Mod-GRF 1-29, daily)Reconstituted lyophilized peptide, 2-5 mg vial typical 100 mcg single-dose PK validated (Ionescu 2006) Modified-GRF 1-29 preserves pulsatile release pattern that matches endogenous GH biology 100 mcg subcutaneous 1-3x daily, typically stacked with 100-200 mcg ipamorelin Dominant community protocol, preferred over DAC for perceived safety and pulsatile GH kinetics

Protocols

Weekly DAC (legacy ConjuChem protocol) Anecdotal

Dose
1-2 mg subcutaneous
Frequency
1-2x per week
Timing
any time of day; sustained IGF-1 elevation does not require pulsatile alignment Teichman 2006 PK data showed 9-11 day IGF-1 elevation per dose
Cycling
8-12 weeks on, 4 weeks off commonly reported; no chronic-use safety data
Days Off
none within cycle
Duration
8-12 week cycles

Less favored in current community practice; DAC produces sustained non-pulsatile elevation that theoretically amplifies IGF-1/cancer risk

Daily Mod-GRF 1-29 (no-DAC pulsatile) Anecdotal

Dose
100 mcg subcutaneous
Frequency
1-3x daily
Timing
Fasted injection pre-bed and/or upon waking and/or post-workout; avoid within 2 hours of carbohydrate intake to preserve GH pulse amplitude Endogenous GH pulses peak during early slow-wave sleep; community practice aligns dosing with natural pulse windows
Cycling
8-12 weeks on, 4 weeks off
Days Off
none within cycle
Duration
8-12 week cycles

Pulsatile pattern mimics endogenous GH secretion; shorter half-life minimizes sustained IGF-1 exposure

CJC + Ipamorelin stack (community standard) Anecdotal

Dose
100 mcg Mod-GRF 1-29 + 100-200 mcg ipamorelin subcutaneous per injection
Frequency
2-3x daily
Timing
Pre-bed, wake, post-workout; fasted windows preferred Ipamorelin is a selective ghrelin-receptor agonist with no cortisol or prolactin cross-reactivity, synergizing with GHRH-receptor activation to amplify GH pulse amplitude
Cycling
8-12 weeks on, 4 weeks off
Days Off
none within cycle
Duration
8-12 week cycles

Dominant biohacker protocol; synergistic mechanism produces larger GH pulse than either compound alone

Cycling protocol (hypothalamic-feedback preservation) Anecdotal

Dose
per chosen protocol above
Frequency
variable
Timing
protocol-dependent Anecdotal; no RCT validates cycling durations
Cycling
8-12 weeks on, minimum 4 weeks off; some users cycle 5 days on, 2 days off within an active block
Days Off
28+ between cycles; weekend off-days within active block optional
Duration
indefinite with cycling

Rationale is to preserve endogenous GHRH receptor sensitivity and avoid somatostatin feedback adaptation; no human data defines optimal on/off ratio

Use-Case Specific Dosing

Use CaseDoseNotes
Body Composition100 mcg Mod GRF + 100 mcg Ipamorelin SC 2-3x dailyBody comp changes require 8-12 weeks; extrapolated from tesamorelin class data
Sleep Quality100 mcg Mod GRF + 100 mcg Ipamorelin SC pre-bedGHRH augments slow-wave sleep; single pre-bed dose may suffice for sleep benefit
Recovery Repair100 mcg Mod GRF + 100 mcg Ipamorelin SC post-workout + pre-bedGH cascade promotes tissue repair and recovery
How the score is calculated
Upside (weighted)
+1.73
Downside (harm ร—1.4)
1.50
EV = 1.73 โˆ’ 1.50 = 0.23 โ†’ Score = ((0.23 + 7) / 12) ร— 10 = 6.0 / 10

Upside (1.73 / 5.00)

DimensionWeightScoreVisualWeighted
Efficacy25%3.0
0.750
Breadth of Benefits15%3.5
0.525
Evidence Quality25%2.5
0.625
Speed of Onset10%3.0
0.300
Durability10%1.5
0.150
Bioindividuality Upside15%2.5
0.375
Total2.725

Upside Rationale

Efficacy (3.0/5.0). Teichman 2006 (J Clin Endocrinol Metab, n=21 single-dose Phase I PK) delivered a 7.5-fold GH AUC increase and 1.5-3x IGF-1 elevation sustained 9-11 days with the DAC variant. That is pharmacologically potent hormonal stimulation on the biomarker level. Body composition effect sizes are inferred from the tesamorelin class: -18% visceral fat at 12 months (Falutz 2010) and +1.31 kg lean mass (Stanley 2014 meta-analysis). Direct CJC-1295 body composition data in humans does not exist, so the score reflects the extrapolation risk more than the raw biomarker signal. Sleep-quality and recovery claims are biologically plausible via the GHRH-to-slow-wave-sleep mechanism documented by Copinschi 1997 but have no CJC-1295-specific RCT support.

Breadth (3.5/5.0). The GH/IGF-1 axis touches body composition (visceral fat, lean mass), sleep architecture (slow-wave sleep amplification), recovery from training (collagen and connective tissue synthesis), skin quality (dermal collagen), and injury repair. Broad downstream reach from a single hormonal node. Does not meaningfully touch cognition, mood, immune, cardiovascular, or metabolic pathways outside the downstream IGF-1 cascade. The breadth score sits above Efficacy because the hormonal cascade is genuinely pleiotropic even if the per-endpoint effect sizes are modest and under-studied in CJC-1295 specifically.

Evidence Quality (2.5/5.0). Only two human Phase I/II trials exist from the original ConjuChem sponsor: Teichman 2006 (n=21, single-dose PK) and Ionescu 2006 (n=8, pulse-dose confirmation). No Phase III. No body composition RCT. No longevity RCT. No independent replication of CJC-1295 specifically. The broader GH-secretagogue class is well-studied through tesamorelin (FDA-approved 2010, multiple large RCTs in HIV lipodystrophy), so mechanistic plausibility is strong. But industry funding from a bankrupted sponsor with no follow-on research is a brittle evidence base. Per v0.5 evidence-integrity rules, this is -0.5 for industry-only origin, not -1.0, because there is no burial signal and no failed replication, just an absent program.

Speed of Onset (3.0/5.0). GH pulses elevate within hours of injection per Teichman 2006 PK data. Peripheral IGF-1 rises within 24-48 hours and plateaus within 7 days of chronic dosing. Subjective sleep-depth and recovery improvements are typically reported by users within 2-4 weeks, matching the Copinschi 1997 slow-wave-sleep augmentation timeline for the GHRH class. Visible body composition changes require 8-12 weeks minimum to manifest in the tesamorelin RCT data and likely longer for CJC-1295 given the smaller effect signal. Not a same-day intervention for any endpoint; faster on hormonal biomarkers than on observable phenotype.

Durability (1.5/5.0). Effects reverse quickly on cessation. Tesamorelin 12-month trials (Falutz 2010) demonstrated that visceral fat and lean mass benefits disappear within months of discontinuation. For CJC-1295 specifically there is no chronic-dosing or cessation data, but the mechanism predicts full reversibility: GHRH receptor activation is a continuous stimulus, not a permanent remodeling event. No mitochondrial memory, no epigenetic lock-in, no tissue remodeling that banks benefits after a finite course. This is a chronic maintenance intervention for anyone who wants to sustain effects. For a biohacker running 8-12 week cycles, benefits fade during off-weeks and the next cycle starts near baseline.

Bioindividuality (2.5/5.0). Age and adiposity blunt GH secretagogue response per the broader tesamorelin and sermorelin literature. Younger, leaner individuals produce larger GH pulses per mcg of GHRH agonist. Somatostatin feedback tone varies, creating substantial inter-individual variability in both baseline GH pulsatility and response magnitude. No CJC-1295-specific responder-phenotype data exist, but the class data suggest adults under 40 with BMI under 28 are the most reliable responders, and older or obese populations see attenuated effects. No clean pre-trial biomarker predicts response in advance, so empirical titration is the only path.

Downside (1.50 / 5.00)

DimensionWeightScoreVisualWeighted
Safety Risk30%2.8
0.840
Side Effect Profile15%2.5
0.375
Financial Cost5%2.5
0.125
Time/Effort Burden5%3.5
0.175
Opportunity Cost5%2.0
0.100
Dependency / Withdrawal15%1.5
0.225
Reversibility25%1.2
0.300
Total2.140
Harm subtotal ร— 1.42.436
Opportunity subtotal ร— 1.00.400
Combined downside2.836
Baseline offset (constant)−1.340
Effective downside penalty1.496

Downside Rationale

Safety Risk (2.8/5.0). The catastrophic signal is Gene Larew's death during ConjuChem Phase II (attributed to pre-existing CV conditions), which ended the program. The slower risk is chronic IGF-1 elevation: Endogenous Hormones Collaborative (Lancet Oncol 2010) documented RR 1.28 (95% CI 1.14-1.44) per SD increase in IGF-1 for breast cancer, with comparable associations for colorectal and prostate. DAC produces sustained non-pulsatile IGF-1 elevation for 9-11 days per dose, theoretically amplifying this signal relative to pulsatile endogenous biology. Mod-GRF 1-29 is closer to endogenous patterns and likely safer. Sackmann-Sala 2015 flagged ADA emergence as a class concern. Per v0.5 catastrophic-floor rules the score sits at 2.8, below the 4.0 floor, because the cancer signal is epidemiological rather than proven causal from CJC-1295.

Side Effect Profile (2.5/5.0). Water retention and peripheral edema are the most consistent reports, dose-dependent and typically resolving within 2-3 weeks of stabilization. Carpal tunnel symptoms, joint pain, and flushing (especially with the DAC variant) occur at meaningful frequency per community reporting. Hunger spikes are common because IGF-1 and GH both influence appetite signaling. Injection site reactions include transient redness, bruising, and occasional lipohypertrophy at repeated sites. Ipamorelin stacking adds mild head-rush and tingling within minutes of injection but does not raise cortisol or prolactin per Raun 1998 characterization. GI events are minimal. Per v0.5 framing, side effects sit in the moderate range and are independent of the safety catastrophic concern scored above.

Financial Cost (2.5/5.0). Gray-market peptide vendors run $80-200 per month depending on variant, dose, and stack. A typical Mod-GRF 1-29 + ipamorelin stack at 100 mcg of each 2-3x daily comes to roughly $120-180 per month at mid-tier vendor pricing. DAC variant runs higher per mg but dosed weekly, so monthly cost is broadly similar. Third-party HPLC purity testing, cold-chain shipping, and endotoxin verification add cost at top-tier vendors but are not consistent across the gray market. Per v0.5 accessible-channel rules, scored at the gray-market channel that virtually all users actually access. No insurance coverage, no HSA/FSA eligibility, no compounding pharmacy option in the US for true CJC-1295 (tesamorelin is available by prescription at far higher retail cost).

Time/Effort Burden (3.5/5.0). Mod-GRF 1-29 dosing requires 2-3 subcutaneous injections per day, typically pre-bed, upon waking, and post-workout. That is 14-21 injections per week plus reconstitution, rotation of injection sites, refrigeration of reconstituted vials, and sourcing of sterile supplies (insulin syringes, bacteriostatic water, alcohol swabs). Each injection takes 60-90 seconds once technique is dialed in but the cumulative daily friction is meaningful compared to oral dosing. DAC variant reduces to 1-2 injections per week but with the sustained IGF-1 trade-off most users now avoid. Cycling logistics add complexity: 8-12 weeks on, 4+ weeks off, with purchasing, reconstituting, and storing a 10-12 week peptide supply ahead of each cycle. Not remotely comparable to a daily capsule.

Opportunity Cost (2.0/5.0). GH optimization is achievable through non-peptide levers: sleep hygiene and slow-wave-sleep optimization (the natural endogenous GH pulse channel), resistance training and sprint work (acute GH pulses), fasting windows (growth hormone sensitivity), and protein quality. These produce smaller magnitude signals than exogenous GHRH agonism but carry zero IGF-1/cancer tail risk and zero injection burden. For most healthy adults under 40 these non-peptide levers are unexploited and represent the first-line opportunity. The OC score is moderate because the levers exist but are not perfectly substitutable; exogenous GHRH agonism produces a larger pharmacological signal than any lifestyle intervention can match at the upper end, and for someone already optimizing sleep and training, the next marginal unit of GH biology sits with secretagogues.

Dependency/Withdrawal (1.5/5.0). No reward-circuit hijack, no craving, no tolerance escalation in the addiction sense. The mild functional-dependency signal is hypothalamic-pituitary feedback adaptation: sustained GHRH stimulation can blunt endogenous GHRH receptor sensitivity over prolonged continuous use, which is the rationale for 4-week off-cycles. Chronic somatostatin feedback can dampen the pulse amplitude response. These adaptations reverse with washout. No GH-secretagogue-specific withdrawal syndrome has been documented in the literature. Contrast with GLP-1 agonists (functional weight-regain dependency) or thyroid hormone (true axis suppression): CJC-1295 dependency is a mild receptor-desensitization pattern, not physiological dependence.

Reversibility (1.2/5.0). DAC variant has a half-life of 7-10 days (Teichman 2006) so plasma clearance is complete within 4-6 weeks of cessation. Mod-GRF 1-29 has a half-life under 30 minutes so systemic clearance is complete within 24-48 hours of the last injection. Elevated IGF-1 returns to baseline within 2-4 weeks after the DAC variant and within days after the no-DAC variant. Body composition and sleep benefits fade over weeks to months post-cessation per tesamorelin class reversal data (Falutz 2010 follow-up). No permanent tissue remodeling, no mitochondrial memory, no epigenetic lock-in. Any effects gained during a cycle are accessible only while dosing continues, which is the structural trade-off of the entire GH-secretagogue class.

Verdict

โœ… Best for: Healthy adults 30-50 seeking growth hormone optimization for body composition, sleep quality, and recovery from training who accept gray-market peptide sourcing, daily subcutaneous injection burden, and the epidemiological IGF-1/cancer association. The no-DAC Mod-GRF 1-29 + ipamorelin stack is the preferred format because pulsatile biology matches endogenous GH secretion. Anyone using CJC-1295 should pair with baseline IGF-1 labs, periodic monitoring (every 8-12 weeks), and top-tier vendor sourcing with HPLC purity verification.

๐Ÿค” Case-by-case: Athletes in aesthetic or strength sports where legal status under anti-doping codes is relevant. Clinicians with access to FDA-approved tesamorelin via compounding pharmacy should strongly prefer that channel over gray-market CJC-1295 because the regulated supply chain and RCT evidence base are incomparably stronger for the same mechanism.

โŒ Avoid if: You have any personal or first-degree family history of cancer (chronic IGF-1 elevation compounds the baseline epidemiological signal). Active diabetes or pre-diabetes (GH elevation worsens insulin sensitivity). Pituitary conditions or prior pituitary surgery. Active cardiovascular disease given the Gene Larew case. Pregnancy or planning pregnancy. Pediatric use (growth plate concerns). Also avoid the DAC variant specifically because sustained non-pulsatile IGF-1 elevation is the pattern most theoretically implicated in the cancer epidemiology. If you want GH secretagogue effects with a regulated evidence base, tesamorelin prescription is the right path.

Use Case Breakdown

The overall BioHarmony score reflects the intervention's primary evidence profile. These subratings are independent assessments per use case.

Use CaseScoreSummary
๐Ÿ‘ Body Composition / Fat Loss6.0Tesamorelin class data: -18% visceral fat at 12 months, +1.31 kg lean mass (Stanley 2014 meta-analysis). Direct CJC-1295 body composition data absent but class extrapolation is reasonable.
โš–๏ธ Hormonal / Endocrine5.5Primary mechanism is GH/IGF-1 axis stimulation; Teichman 2006 documented 2-10x GH elevation and 1.5-3x IGF-1 elevation in humans.
โš–๏ธ Muscle Growth / Hypertrophy5.5GH/IGF-1 promotes lean mass accrual; tesamorelin meta-analysis shows +1.31 kg lean mass; indirect evidence only.
โš–๏ธ Sleep Quality5.0GHRH augments slow-wave sleep (Copinschi 1997); community reports improved sleep depth with pre-bed dosing.
โš–๏ธ Sleep Architecture (Deep/REM)5.0GHRH increases slow-wave sleep duration and GH pulse amplitude during sleep.
โš–๏ธ Recovery / Repair5.0GH/IGF-1 cascade promotes tissue repair, collagen synthesis, and recovery from training.
โ—‹ Skin / Beauty4.0GH/IGF-1 axis promotes collagen synthesis and skin thickness; community reports improved skin quality.
โ—‹ Injury Recovery4.0GH cascade promotes tissue repair; commonly used in sports injury recovery contexts.
โ—‹ Energy / Fatigue4.0Community reports improved energy and vitality; GH elevation has energizing effects.
โ—‹ Longevity / Lifespan3.0Chronic IGF-1 elevation is epidemiologically associated with cancer risk (RR 1.2-1.5x); longevity trade-off is negative to neutral.

Frequently Asked Questions

What is CJC-1295 and how does it work?

CJC-1295 is a synthetic 30-amino-acid GHRH analog that binds pituitary GHRH receptors and triggers pulsatile growth hormone release. Teichman 2006 (J Clin Endocrinol Metab, n=21 single-dose PK) showed 2-10x GH elevation and 1.5-3x IGF-1 elevation lasting 9-11 days after a single DAC dose. Downstream, elevated IGF-1 drives tissue anabolism, collagen synthesis, and lipolysis. Two variants exist: with DAC (covalent albumin binding, 7-10 day half-life) and without DAC (Modified-GRF 1-29, under 30 minute half-life, pulsatile biology).

What is the difference between CJC-1295 with DAC and without DAC (Mod-GRF 1-29)?

The DAC variant covalently binds serum albumin via a drug affinity complex (Teichman 2006), extending half-life to 7-10 days and producing sustained IGF-1 elevation. The no-DAC variant (Modified-GRF 1-29, Mod-GRF) has a half-life under 30 minutes and preserves pulsatile GH biology that mimics endogenous secretion. Community practice has shifted toward no-DAC since roughly 2015 because sustained non-pulsatile IGF-1 is the pattern most implicated in the epidemiological cancer signal (RR 1.2-1.5x per SD IGF-1). No head-to-head RCT compares the two formats for safety or efficacy in humans.

How do people dose CJC-1295 and how does it stack with ipamorelin?

The DAC protocol is 1-2 mg subcutaneous once or twice weekly, based on Teichman 2006 PK data. The no-DAC protocol is 100 mcg subcutaneous 1-3x daily, typically pre-bed, upon waking, and post-workout. The dominant community stack combines 100 mcg Mod-GRF 1-29 with 100-200 mcg ipamorelin per injection; ipamorelin is a selective ghrelin-receptor agonist with no cortisol or prolactin cross-reactivity, so it synergizes with GHRH-receptor activation to amplify GH pulse amplitude. Fasted timing is preferred to preserve pulse amplitude because post-prandial hyperglycemia blunts GH release.

What does the human trial evidence for CJC-1295 actually show?

Direct human evidence is thin. Teichman 2006 (J Clin Endocrinol Metab, n=21) is the primary Phase I single-dose DAC PK trial documenting 7.5-fold GH AUC increase and 9-11 day IGF-1 elevation. Ionescu 2006 (n=8) confirmed pulsatile GH secretion is preserved under continuous stimulation. No Phase III exists. No body composition or longevity RCT has ever been conducted. ConjuChem, the original sponsor, shut down its program after a Phase II subject died. Most biohacker claims about body composition extrapolate from the tesamorelin class data (-18% visceral fat, +1.31 kg lean mass).

What do biohackers actually experience on CJC-1295 plus ipamorelin?

Biohacker reports cluster around deeper sleep within 2-4 weeks, improved perceived recovery from training, modest visible lean mass gains and fat loss over 8-12 weeks, and skin quality improvements. These are anecdotal, unblinded, and confounded by simultaneous diet and training optimization. The most consistent reported benefit is subjective sleep depth, which aligns with the GHRH-to-slow-wave-sleep mechanism documented by Copinschi 1997. Body composition claims are not validated by any CJC-1295-specific RCT and rely on tesamorelin class inference. Effect sizes are typically smaller than reported by vocal forum users.

Is CJC-1295 safe, and what are the cancer and antibody concerns?

The catastrophic signal is the Gene Larew death during ConjuChem Phase II (attributed to pre-existing cardiovascular conditions but poorly documented publicly). The slower risk is chronic IGF-1 elevation: the Endogenous Hormones pooled analysis found RR 1.28 (95% CI 1.14-1.44) per SD increase in circulating IGF-1 for breast cancer, with comparable associations for colorectal and prostate. Sackmann-Sala 2015 flagged anti-drug antibody emergence as a class-wide GH-secretagogue concern. Common side effects include water retention, carpal tunnel symptoms, flushing with DAC, hunger spikes, joint pain, and injection site reactions.

How does CJC-1295 compare to tesamorelin, sermorelin, and ipamorelin?

Tesamorelin is the FDA-approved GHRH analog in this class (Egrifta, HIV lipodystrophy indication) with 12-month RCT evidence for -18% visceral fat and +1.31 kg lean mass (Falutz 2010, Stanley 2014). Sermorelin is an older, shorter-half-life GHRH fragment with oral and injectable forms. CJC-1295 without DAC is functionally similar to sermorelin pharmacokinetically. Ipamorelin works on a different receptor (GHS-R, ghrelin pathway) and is often stacked with GHRH analogs because the two receptors synergize. Tesamorelin has the cleanest evidence base; CJC-1295 has none of the RCT validation.

Is CJC-1295 legal, and what should I know before buying from peptide vendors?

CJC-1295 is not FDA-approved and is not DEA scheduled. It is sold by gray-market "research chemical" peptide vendors at $80-200 per month, which the FDA considers unapproved drug commerce. Vendor quality varies widely, and third-party HPLC purity testing, cold-chain handling, and endotoxin testing are not guaranteed outside top-tier suppliers. A Phase III trial does not exist. Long-term safety data do not exist. Any use is self-experimentation with a non-verified compound. Some compounding pharmacies dispense related GHRH analogs (tesamorelin) under prescription, but true CJC-1295 with DAC is not available through regulated US pharmacies.

How This Score Could Change

BioHarmony scores are living assessments. New research, regulatory changes, or personal context can shift the score up or down. These are the most likely scenarios that would change this intervention's rating.

ScenarioDimension shiftsNew score
Phase III body-composition RCT confirms tesamorelin-equivalent effects in CJC-1295 specificallyEvidence 2.5 to 3.5, Efficacy 3.0 to 3.56.8 / 10 (๐Ÿ‘ Worth trying)
Long-term pulsatile-dosing cohort clears IGF-1/cancer concern for Mod-GRF 1-29Safety 2.8 to 1.86.8 / 10 (๐Ÿ‘ Worth trying)
FDA approves a CJC-1295 variant for body composition indicationEvidence 2.5 to 4.0, Safety 2.8 to 2.07.6 / 10 (๐Ÿ’ช Strong recommend)
Case reports of cancer in long-term users surfaceSafety 2.8 to 4.05.2 / 10 (โš–๏ธ Neutral)
Anti-drug antibody signal replicates and shows neutralizing activityEvidence 2.5 to 2.0, Efficacy 3.0 to 2.55.4 / 10 (โš–๏ธ Neutral)
Head-to-head RCT shows pulsatile Mod-GRF inferior to DAC for body compEfficacy 3.0 to 2.5, Safety 2.8 to 3.25.5 / 10 (โš–๏ธ Neutral)
Tesamorelin becomes generic and displaces gray-market CJC-1295 on costCost 2.5 to 1.5, Opportunity 2.0 to 3.05.8 / 10 (๐Ÿ‘ Worth trying)

Key Evidence Sources

Other interventions for Body Composition

See all ratings โ†’
๐Ÿ“Š How BioHarmony scoring works

BioHarmony translates a weighted expected-value calculation into a reader-facing 0โ€“10 score. 5.0 is neutral (benefits and risks balance). Above 5 = benefits outweigh risks; below 5 = risks outweigh benefits.

Harm-type downsides (safety risk, side effects, reversibility, dependency) carry a 1.4× precautionary multiplier. Harm weighs more than benefit. Opportunity-type downsides (financial cost, time/effort, opportunity cost) are subtracted at face value.

Use case subratings are independent assessments of how well the intervention addresses specific health goals. They are not components of the overall score. Each subrating reflects the scorer's judgment based on use-case-specific evidence, safety, and effect sizes.

Every dimension is evaluated on a 1–5 scale, and the baseline (1) is subtracted before weighting. A perfect intervention with zero downsides contributes zero penalty rather than a residual floor, so top-tier scores are actually reachable.

EV = Upside − Downside
EV = 1.725 − 1.496 = 0.229
EV ranges from −5 to +5. Adding 7 shifts to 2–12, dividing by 12 normalizes to 0–1, then ×10 gives the 0–10 score.
Score = ((0.229 + 7) / 12) × 10 = 6.0 / 10

See the full BioHarmony methodology โ†’

This report is educational and informational. It is not medical advice, diagnosis, or treatment. Consult a qualified healthcare provider before starting any new supplement, device, protocol, or intervention, particularly if you take prescription medications, have a chronic health condition, are pregnant or nursing, or are under 18.