IGF 1 lr3 Dosage and Duration Guide. MuscleChemistry Activation of IGF 1 pathway and suppression of atrophy related genes are involved in Epimedium extract (icariin) promoted C2C12 myotube hypertrophy Scientific Reports IGF 1 LR3 Muscle Growth & Performance The Biohacker IGF1 stimulates greater muscle hypertrophy in the absence of myostatin in male mice in: Journal of Endocrinology Volume 234 Issue 2 (2017) Frontiers Sheep recombinant IGF 1 promotes organ specific growth in fetal sheep Localized Igf 1 transgene expression sustains hypertrophy and regeneration in senescent skeletal muscle Nature Genetics