Recombinant Human LR3 IGF I IGF 1 GMP Protein, CF 8335D GMP: R&D Systems 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 A Medical Review of IGF 1 LR3 Dosage, Side Effects and Safety Aspects A Medical Review of IGF 1 LR3 Dosage, Side Effects and Safety Aspects IGF 1 LR3 (1 MG) Sigma Compounds IGF1 LR3 Reconstitution. This is just what works for me. #fyp #peptides #gymrat #fitnesstips