Follistatin-344 Mechanism of Action
How Follistatin-344 works: receptor targets, signalling pathways, and molecular profile.
Blocking the Body's Brake on Muscle Growth
Follistatin-344 binds and neutralizes myostatin, a protein that normally restrains skeletal muscle growth by signaling through the activin receptor pathway. Animals and rare humans with naturally low myostatin activity show dramatically increased muscle mass, this real biology is the entire rationale behind follistatin as a muscle-growth research compound.
A Real Peptide, Unlike Steroidal Myostatin-Adjacent Compounds
Unlike steroidal compounds that claim myostatin-pathway effects as a side mechanism (e.g. YK-11), follistatin-344 acts directly and specifically on myostatin itself as its primary, dedicated mechanism, the most mechanistically 'clean' myostatin-inhibition approach among peptides sold in this space.