Peptides for Muscle & Performance
Peptides researched for muscle growth, lean mass, strength, and physical performance.
Important
This page lists peptides that have been studied in the context of muscle & performance research. Inclusion does not mean a peptide is safe, effective, approved, or recommended.
Do not use this page to make health decisions. Always consult a licensed healthcare provider.
14 peptides
Tesamorelin (Egrifta)
FDA ApprovedAn FDA-approved daily injection (Egrifta, Egrifta SV) for HIV-positive adults who develop excess belly fat as a side effect of their HIV medications....
ACE-031
Early ClinicalAn experimental drug that builds muscle by blocking proteins that normally limit muscle growth. Development was paused after some participants...
GHRP-2
Early ClinicalA lab-made peptide that triggers growth hormone release from the pituitary gland (a small gland in the brain) by working like ghrelin, the body's...
MK-677 (Ibutamoren)
Early ClinicalAn oral daily compound (ibutamoren) that mimics ghrelin (the body's hunger hormone) to raise growth hormone levels, studied in people for building...
Sermorelin (Geref)
Early ClinicalA synthetic peptide that stimulates the pituitary gland (a small gland in the brain) to release growth hormone naturally by mimicking the body's own...
BPC-157
Limited HumanA lab-made peptide derived from a protein found in human stomach fluid that has shown healing effects across multiple body systems -- gut, tendons,...
CJC-1295
Limited HumanA lab-made peptide that triggers the pituitary gland (a small gland in the brain that controls hormone production) to release growth hormone over...
Follistatin 344
Limited HumanA naturally occurring protein that blocks signals limiting muscle growth. A gene therapy version showed promise for Becker muscular dystrophy in a...
Ipamorelin
Limited HumanA synthetic peptide that stimulates growth hormone release from the pituitary gland (a small gland in the brain) without significantly raising stress...
GDF-8 Prodomain (Myostatin Propeptide)
PreclinicalA natural protein fragment that blocks myostatin (a hormone that limits muscle growth), which may help preserve muscle mass in conditions that cause...
IGF-1 DES
PreclinicalA shortened form of IGF-1 (a natural growth-promoting hormone) that is roughly 10 times more potent than the full-length version because it avoids...
IGF-1 LR3 (Long R3 IGF-1)
PreclinicalA modified version of IGF-1 (a natural growth-promoting hormone) engineered to stay active in the body longer than the natural form. All published...
PEG-MGF
PreclinicalA modified form of a natural muscle-repair signal the body produces after exercise or injury, chemically altered to last longer in the body. It has...
TB-500
PreclinicalA synthetic peptide related to a natural human protein (Thymosin Beta-4) that promotes tissue repair, reduces inflammation, and supports the growth...