What Is Follistatin 344?
What Is Follistatin 344? Follistatin 344 is a 344-amino-acid glycoprotein that binds and neutralises myostatin, activin A and other TGF-beta family members that act as negative regulators of muscle growth. Rodent and large-animal studies show dramatic muscle hypertrophy when myostatin is inhibited. Follistatin is an endogenous protein produced primarily in the gonads, pituitary and liver….