Growth is a signal, not just effort. IGF1 LR3 is studied for its role in enhancing pathways that drive muscle development and recovery. Do you train harder for strength or size?" #IGF1LR3 # 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 Exogenous IGF 1 promotes hair growth by stimulating cell proliferation and down regulating TGF 1 in C57BL 6 mice in vivo ScienceDirect IGF 1 LR3 1mg Insulin Like Growth Factor Insulin Like Growth Factor 1 (IGF 1) and Its Monitoring in Medical Diagnostic and in Sports Insulin like growth factor 1 in articular cartilage repair for osteoarthritis treatment Arthritis Research & Therapy Springer Nature Link