IGF 1 LR3 (Insulin like Growth Factor 1 Long R3) is often called the "Holy Grail" of muscle building peptides because of its potent anabolic effects. In a Med Spa context, it is typically sought out Pediatric Implications of Normal Insulin GH IGF Axis Physiology Endotext NCBI Bookshelf HGH vs IGF 1 LR3: Scientific Comparison & Research Guide Can I take Insulin like Growth Factor 1 Long R3 (IGF 1LR3) with Type 1 Diabetes Mellitus (T1DM)? LR3 IGF 1 (Human), Recombinant Protein, CHO, Tag Free