Skip to content
Peptigraph home

CJC-1295 for Muscle Growth: What the Evidence Shows

What human and animal studies show about CJC-1295 for muscle growth, how strong that evidence is, and what is still unproven.

Medically reviewed by Juan Pablo Frías, MD · · DisclosureGHRH analogUpdated
Strongest evidence
Human observational
Human studies
1
PubMed records, our ledger
Animal studies
1
PubMed records, our ledger
Studies we summarised
2
with an outcome for muscle growth

Evidence for muscle growth

Each row is an outcome related to muscle growth from a published study, strongest design first. Animal and cell results are labelled and are not human results. User reports are not counted as evidence here.

CJC-1295 for muscle growth: outcomes in published studies
OutcomeResultStudy typeSource
Reasons for use reported on forumsForum users cited weight loss, muscle enhancement, youthful skin, improved sleep and injury healing as reasons for use; these are user-stated motives, not measured results.Human observationalSubstance use & misuse 2016, PMID 26771670
Regulatory status and evidence for physique claimsThe review notes no regulatory approval for physique- or performance-related indications of these peptides, including this long-acting GHRH analog.ReviewFrontiers in endocrinology 2026, PMID 42395176

PubMed records for CJC-1295 and muscle growth: 1 human, 1 animal (search counts, not studies we reviewed). Grades follow our evidence scale.

How strong is it?

Strongest evidence:Human observational evidence, 3 of 4Substance use & misuse 2016, PMID 26771670

A human randomized trial outweighs any number of animal studies. Animal and cell results show a mechanism worth testing, not that it works in people.

Other peptides people research for muscle growth

CJC-1295 + IpamorelinSermorelinEnclomipheneHGHTirzepatideIGF-1 LR3hCGSemaglutide
All peptides for muscle growth, compared

Common questions

Does CJC-1295 help with muscle growth?

The strongest study we summarise for muscle growth is human observational evidence, across 2 studies with an outcome for muscle growth. That is not proof it works in people.

Is CJC-1295 approved for muscle growth?

CJC-1295 is Not FDA approved · research chemical. Which conditions that approval covers is set by the label; use for anything else is off-label.

What is the best peptide for muscle growth?

There is no single answer. Our muscle growth overview compares each candidate by evidence grade and legal status rather than by popularity.

More on CJC-1295

DosageDoses used in published studies, with the source for each.CalculatorVial, water and dose to syringe units.Side effectsWhat labels and studies report, and what is unknown.ResultsStudy outcomes and when they were measured.PricePrice per mg and per week from dated listings. No vendor links.Legal statusFDA, compounding and WADA status with dates.

Sources

  1. 1Netnography of Female Use of the Synthetic Growth Hormone CJC-1295: Pulses and Potions.Substance use & misuse · 2016PMID 26771670Accessed 2 Oct 2026
  2. 2The emerging landscape of performance-enhancing peptides modulating GH-IGF1 axis: bridging the gap between clinical evidence and patient self-administration.Frontiers in endocrinology · 2026PMID 42395176Accessed 2 Oct 2026

Found an error? Report a correction.