Follistatin 344 — Research Overview

Also known as: FST-344, Follistatin, Activin-binding protein, FLGR242

A naturally occurring glycoprotein and potent endogenous inhibitor of myostatin and activin — TGF-β superfamily members that limit muscle growth. Follistatin 344 is the predominant muscle isoform; by neutralizing myostatin it removes the body's primary brake on muscle hypertrophy, making it a research target for muscle wasting diseases, cachexia, and performance.

Back to Peptide Encyclopedia