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CJC-1295 (with DAC)

Long-acting GHRH analogue peptide

Growth-hormone axis res…
Generic peptide vial illustrationCJC-1295 (with DAC)
Entity typePeptide analogue / modified peptide
Evidence reviewed2026-09-18
Canonical recordCJC1295_DAC
Page updated2026-09-20
Evidence profileEarly human pharmacology with regulator safety concerns; unapproved
Human evidenceSee evidence
Regulatory statusNot FDA-approved
Choose your depthStart simple, then open the evidence or technical detail only if you need it.
Quick answerPlain languageEvidenceOutcomes and studiesStudiesPrimary recordsTechnicalMechanism, route and identifiers

In plain English

30-second evidence answer

What does the evidence mean in simple terms?

CJC-1295 with DAC has early human studies showing that it changes growth-hormone signals. That is not the same as proving useful fat-loss, muscle, recovery or anti-ageing benefits. It is not an approved medicine for those uses.

Still uncertain: Meaningful fat-loss, muscle-gain, recovery or anti-ageing benefit, long-term safety or equivalence of marketplace formulations.

New to terms such as “preclinical”, “randomized” or “investigational”? Use the plain-English glossary →

What does the evidence mean in simple terms? table
What is it?Long-acting GHRH analogue peptide
Entity typePeptide analogue / modified peptide
Research focusGrowth-hormone axis research
Human evidenceSmall early human studies show sustained GH and IGF-I elevation after CJC-1295 with DAC, establishing endocrine target engagement but not body-composition, recovery or anti-ageing efficacy.
Regulatory statusNot FDA-approved; FDA lists CJC-1295 among substances with significant safety concerns in compounding.
Main limitationsMeaningful fat-loss, muscle-gain, recovery or anti-ageing benefit, long-term safety or equivalence of marketplace formulations.
SafetyEndocrine effects are expected; FDA has reported serious adverse events including increased heart rate and systemic vasodilatory reactions in available CJC-1295 data.
Evidence reviewed2026-09-18
i
Small early human studies show sustained GH and IGF-I elevation after CJC-1295 with DAC, establishing endocrine target engagement but not body-composition, recovery or anti-ageing efficacy.
Outcome-level evidence

Evidence is not one score.

Each record below answers a narrower question about an outcome, population or context. Evidence status and the study finding are shown separately so strong evidence is not mistaken for a positive effect.

How to read this →

Raising GH / IGF-I

Human evidence
Early human pharmacology

Context: Healthy adults

Finding: Human target engagement is established.

Uncertainty / evidence gap: No controlled evidence in these studies for anti-ageing, fat loss, muscle gain or injury recovery.

Verified 2026-09-18Primary source ↗

Fat loss / muscle gain / anti-ageing benefit

Evidence gap
No demonstrated clinical lifestyle-outcome efficacy in identified Phase I program

Context: Healthy adults

Finding: Target engagement is established.

Uncertainty / evidence gap: Clinically meaningful physique/recovery outcomes were not established.

Verified 2026-09-18Primary source ↗

Serious adverse-event / tolerability signals

Regulatory context
Limited human pharmacology plus regulator review

Context: Human exposure and compounded-use context

Finding: The safety evidence is materially less reassuring than simply saying early studies reported target engagement.

Safety / tolerability context: Long-term safety, repeated exposure and exact substance identity remain uncertain.

Evidence rule: an outcome-specific evidence label is not a recommendation, a safety rating or an overall score for the compound.

Evidence synthesis

  • ✓Human target engagement is established.
  • ✓Target engagement is established.
  • ✓The safety evidence is materially less reassuring than simply saying early studies reported target engagement.

Important limitations

  • !Small early-phase endocrine studies with surrogate endpoints.
  • !Early phase; small studies; surrogate endpoints.
  • !Different CJC-1295-related substances and marketplace 'without DAC' products cannot be merged.

Selected study & evidence records

CJC-1295 increases GH and IGF-I in healthy adults

2006 · Two randomized placebo-controlled dose-escalation studies

GH increased approximately 2-10-fold for at least 6 days and IGF-I about 1.5-3-fold for 9-11 days; estimated half-life 5.8-8.1 days.

Study detail → Primary source ↗

FDA evidence review of CJC-1295-related compounded substances

2026 · Regulatory safety evidence review · n=Not applicable

FDA states available clinical data are limited and has identified serious adverse events associated with CJC-1295 including increased heart rate and systemic vasodilatory reaction.

Study detail → Primary source ↗

Safety and unknowns

Endocrine effects are expected; FDA has reported serious adverse events including increased heart rate and systemic vasodilatory reactions in available CJC-1295 data.

FDA reports limited clinical data and serious adverse events associated with CJC-1295 including increased heart rate and systemic vasodilatory reaction; long-term safety and immunogenicity remain inadequately characterized.

Technical details

Mechanism / biologyGHRH analogue with drug-affinity-complex technology that prolongs exposure and stimulates GH/IGF-1 secretion.
Route / formulation boundaryCJC-1295 with DAC is not interchangeable with informal 'CJC without DAC' products.
Identity / data-quality noteUse the canonical compound identity and studied formulation when interpreting evidence.
Study / label regimen evidenceVerified study/label regimen evidence is available. Published human pharmacology regimen. Open descriptive regimen evidence →
Identifiers & alternate namesCJC DAC · CJC-1295 DAC · Cjc-1295

Source depth & provenance

WhichPeps does not rely on a single headline study when the evidence base is broader. Primary research, registries, regulators and supporting records are kept distinct.

2structured study records
3outcome records
4linked source records

How to read these counts: they show evidence coverage, not evidence strength. One large, well-designed study can be more informative than several weak or indirect records.

Show supporting and discovery sources

Study pages above contain the records used for public evidence summaries. The links below include supporting, regulatory and literature-discovery sources; a registry or search result is not treated as proof of benefit.

Evidence rule: WhichPeps keeps human, animal, laboratory, regulatory and product/formulation evidence distinct. Common names help people find the page; they do not change the underlying scientific identity.