Follistatin is a specific peptide and specifically inhibits the release of the negative stimulating hormone myostatin, which is responsible for limiting muscle build-up and muscle breakdown.
Myostatin promotes the breakdown of so-called myotubes, ie skeletal muscle fibers. This ultimately results both in the inhibition of muscle building and in general in muscle breakdown. In addition, the protein myostatin controls muscle muscle growth by preventing uncontrolled growth of the skeletal muscle. Follistatin 344 plays the leading role in regulating myostatin. It acts like a very precise filter in the skeletal muscle and filters the muscle-building-inhibiting proteins, mainly myostatin and deactivates them. This is how the name Myostatin Hemmer comes about.