IGF 1 LR3 vs HGH: Which Growth Enhancer Is Better? Swolverine 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 Unlocking the Power of IGF 1 LR3: The Ultimate Guide to Growth and Rec Effect of GH and IGF 1 administration on bone fractures healing. Download Table Muscle Growth Truro Peptides (PC)