PEG-MGF (Cat No.:P000428) is a synthetic, modified form of MGF, a splice variant of IGF-1 (Insulin-like Growth Factor-1) that plays a key role in muscle repair and regeneration. Pegylation involves attaching polyethylene glycol (PEG) chains to the peptide, significantly extending its half-life and enhancing stability in the body. PEG-MGF is commonly researched for its potential to stimulate muscle hypertrophy, recovery, and satellite cell activation following injury or intense exercise. It is of particular interest in sports science, regenerative medicine, and anti-aging research for its muscle-preserving properties.