IGF 1: Miracle Hormone or Health Hazard? Diet vs Disease IGF 1: The Secret to Supercharging Your Energy, Sleep, and Lean Muscle Mass Lifeforce mylifeforce.com Recombinant Human LR3 IGF I IGF 1 GMP Protein, CF (8335D GMP) by R&D Systems, Part of Bio Techne IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society 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 IGF1 LR3 Peptide Anderson Longevity Clinic