IGF1 LR3 insulin like growth factor IGF 1 LR3 1mg 100 VIALS AT 50% OFF Peptide Pros RUO Recombinant Human IGF 1 LR3 Protein IGF 1 LR3 vs GH Peptides The Battle Between Performance & Risk YouTube Buy IGF 1 LR3 for Sale ( Insulin Growth Factor 1 ) from Melanotan Express Follistatin 344 works by binding to and inhibiting myostatin the genetic limit switch that restricts how much muscle somebody can build. When you reduce myostatin, you create an environment where: Muscle