Recombinant Human LR3 IGF I IGF 1 GMP Protein, CF 8335D GMP: R&D Systems IGF 1, the Cross Road of the Nutritional, Inflammatory and Hormonal Pathways to Frailty IGF 1: The Secret to Supercharging Your Energy, Sleep, and Lean Muscle Mass Lifeforce mylifeforce.com A Medical Review of IGF 1 LR3 Dosage, Side Effects and Safety Aspects Increased testicular insulin like growth factor 1 is associated with gonadal activation by recombinant growth hormone in immature rats Reproductive Biology and Endocrinology Springer Nature Link Recombinant expression of IGF 1 and LR3 IGF 1 fused with xylanase in Pichia pastoris Applied Microbiology and Biotechnology Springer Nature Link