IGF 1 LR3: Dosage Results and Safety Guide Vita Bella Health 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 Follistatin like 1 in immune diseases. Schematic representation of the Download Scientific Diagram IGF LR3 is a peptide that play a role in muscle growth, tissue repair and recovery. But like all peptide therapies, it's not one size fits all. We focus on using peptides thoughtfully and in the Huma Peptide IGF 1 LR3 Lean Muscle Growth & Recovery