Overview PEG MGF or Pegylated Mechano Growth Factor is a variant of Insulin-like Growth Factor-1 (IGF-1) that is developed by modifying the structure of the molecule through the addition of polyethylene glycol (PEG). This modification extends the half-life of the protein in the body, making it more effective in inducing muscle growth, Regenerierung, and repair. It is a potent stimulant …