Follistatin 344 (FST-344) Peptide 1mg

Follistatin 344 (FST-344) is a highly potent, naturally occurring autocrine glycoprotein that functions as a massive catalyst for unprecedented muscle tissue growth. Its primary and most profound mechanism of action involves directly binding to and completely neutralizing myostatin (GDF-8)—a localized protein that naturally limits and restricts muscle development. By effectively blocking myostatin signaling, FST-344 dramatically removes the body's biological "brakes," unlocking the potential for rapid, unhindered skeletal muscle hyperplasia (the actual creation of new muscle cells) and hypertrophy (the expansion of existing muscle cells). In advanced research and body recomposition protocols, it is heavily prized as an elite-level compound for forcing extreme lean mass accrual and significantly enhancing overall physical strength.