Frontiers Sheep recombinant IGF 1 promotes organ specific growth in fetal sheep Expression of IGF 1 Isoforms after Exercise induced Muscle Damage in Humans: Characterization of the MGF E Peptide Actions In Vitro In Vivo Localized Igf 1 transgene expression sustains hypertrophy and regeneration in senescent skeletal muscle Nature Genetics Endothelial IGF 1R deficiency disrupts microvascular homeostasis, impairing skeletal muscle perfusion and endurance: implications for age related sarcopenia GeroScience Springer Nature Link Dr Teal's Luxury Spa Bath Carrot Essential Oil with Glutathione Starsam Naturals