Reviewed by The Peptide Dispatch Editorial Team · Last reviewed July 6, 2026
Follistatin 344 (FST344) is a muscle peptide, at the research chemical stage in the published literature. Naturally occurring protein that inhibits myostatin and other TGF-beta family members. Promotes muscle growth.
Naturally occurring protein that inhibits myostatin and other TGF-beta family members. Promotes muscle growth.
| Research Status | Research chemical |
|---|---|
| Half-Life | Unknown |
| Administration | Subcutaneous injection |
| Doses Reported in Published Studies | 100 mcg |
Binds and neutralizes myostatin, activin, and other muscle growth inhibitors.
Naturally occurring protein that inhibits myostatin and other TGF-beta family members. Promotes muscle growth.
Binds and neutralizes myostatin, activin, and other muscle growth inhibitors.
Follistatin 344 is at the following stage in the published literature: Research chemical. All information is for research and educational purposes only.
Reported half-life: Unknown.
Reported administration route in the literature: Subcutaneous injection. This is not a recommendation for human use.
Educational content, not medical advice. Effects described are drawn from cited research in study subjects.