Growth Hormone Secretagogues
Follistatin 344
Also known as: FS-344
Follistatin 344 is a recombinant form of the naturally-occurring glycoprotein (344-residue splice variant) that inhibits activin and myostatin signaling. Clinical validation exists ONLY through small AAV gene-therapy phase 1/2 trials in Becker muscular dystrophy; recombinant injectable protein sold on the grey market has no clinical evidence. NOT FDA-approved. WADA-prohibited (myostatin inhibitor) and banned in competitive sport.
Vendors carrying Follistatin 344
0 listings, ranked by trust score
Each row is a (vendor, peptide) pair. Click through for the listing detail, the vendor's full trust profile, and any COAs they've published.
No vendors carrying this peptide are indexed yet.
Independent evidence
All 1 COAs for Follistatin 344 →COAs for Follistatin 344
1 third-party test across 1 vendor. Each card links to the full report.