Attenuated glucose stimulated insulin secretion during an acute IGF 1 LR3 infusion into fetal sheep does not persist in isolated islets Journal of Developmental Origins of Health and Disease Cambridge Core Emerging Anabolic and Regenerative Peptides in Athletic Body Re composition and Bodybuilding: Mechanisms of Action, Dosing Strategies, and Evidence Review IGF 1 LR3 The Muscle Building Peptide Everyone's Talking About IGF 1 LR3 is one of the most powerful performance peptides used for muscle growth, recovery, and fat loss. It's a modified version IGF 1 LR3 1 mg KIT (10 vials), 10 mg SwissChems Asia