Injecting IGF1 LR3 directly into the muscle your training : r nattyorjuice 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 + MASS Cycle = CRAZY Growth? #askDave Personal experience with igf1 lr3 peptide? Awesome results this year igf 1 lr3 ,cyp,e,primo then adding tren for 2 months then removed primo and tren added FTPP and diaing diet with labs and results hopefully helps : r Peptides IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society