Growth hormone research
Best Peptides for Muscle Growth and Performance, Ranked by Evidence
Growth hormone secretagogues are the most clinically documented category on this site, but their approved uses do not match how they get marketed for muscle and performance. Ranked by strength of underlying human data, with the approved-indication mismatch called out directly.
Editorial review: September 14, 2026. Ranked by evidence strength, not popularity.
Key takeaways
Ranked by what has actually been studied
- Only FDA-approved compound in this group: Tesamorelin
- Published human pharmacokinetic trial: CJC-1295 with DAC
- Selective secretagogue, animal-grade potency data: Ipamorelin
- Shorter acting, less direct evidence: CJC-1295 (No DAC)
- Different mechanism, exercise-linked: MOTS-c
Tesamorelin · Only FDA-approved compound in this group
Approved as EGRIFTA SV for reduction of excess abdominal fat in a specific HIV-associated condition, not for general muscle building or athletic performance. The approval is real; the extrapolation to bodybuilding use is not supported by the label.
Read the Tesamorelin research guide →CJC-1295 with DAC · Published human pharmacokinetic trial
A modified GHRH analog with an extended half-life. A published trial in healthy adults documented its growth hormone release pattern, which is more direct human data than most items in this category.
Read the CJC-1295 with DAC research guide →Ipamorelin · Selective secretagogue, animal-grade potency data
A synthetic pentapeptide shown in animal and in vitro work to selectively release growth hormone at potency similar to a reference peptide. Selectivity is the appeal; direct human muscle outcome trials are not part of the record reviewed.
Read the Ipamorelin research guide →CJC-1295 (No DAC) · Shorter acting, less direct evidence
The non-DAC version of the same GHRH analog family, chemically modified for stability but without the extended activity of the DAC version. Evidence for this specific form is more limited than for CJC-1295 with DAC.
Read the CJC-1295 (No DAC) research guide →MOTS-c · Different mechanism, exercise-linked
Not a growth hormone secretagogue. Included here because it is marketed in the same performance category, and its exercise-linked signal comes from a different, mitochondrial pathway.
Read the MOTS-c research guide →Reign Peptide · Business disclosure
Research product listings
Jorge Abreu is involved in Reign Peptide. Links to Reign are a business connection, not an independent endorsement. Reign lists these products for laboratory research, not human consumption.
Use the listing to check the labeled identity, amount and available batch documentation. A purity result alone does not verify sterility, clinical suitability or equivalence to a medicine used in a trial.
Names and sizes are product labels, not dosing recommendations. Confirm current details with the seller.