IGF 1 LR3 vs HGH: Which Growth Enhancer Is Better? Swolverine Can peptides like sermorelin, IGF 1 LR3, and GHS boost muscle growth? Maybe. Are they safe? We don't know. These compounds boost natural growth hormone (GH) and IGF 1 levels, key drivers of muscle Most people think all peptides = fat loss., Thats not even close., IGF 1 LR3 isnt about burning tissue its about building it., This is the signal that tells muscle fibers to:, Recover faster, Product Question] The Ordinary is launching a new Growth Factor serum in January, thoughts? : r SkincareAddiction