IGF 1 LR3 1mg Research Vial Long Acting IGF 1 LiveWell IGF 1 LR3 Dosage Protocol: Safety Guide PeptidesExplorer IGF 1 LR3 1 mg VPeptide IGF 1 LR3 Canada: Ultra Pure Peptide for Growth, Muscle, & Cellular Signaling Research 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