Measurement of IGF 1 by MSIA SRM Cell proliferation bioactivity of purified IGF 1 LR3 IGF 1. (A) Download Scientific Diagram 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 (Insulin like Growth Factor 1) 125mcgx1 vial Superior Peptide at 2800 vial IGF Max Injection in New Delhi ID: 2855356880897 Localized Igf 1 transgene expression sustains hypertrophy and regeneration in senescent skeletal muscle Nature Genetics