CJC 1295 + Ipamorelin vs IGF 1 LR3 for Muscle Growth IGF 1 LR3 forces receptor desensitization in 4 6 weeks, requiring months off before you can use it again. CJC 1295 and Ipamorelin amplify your natural Growth Hormone and Insulin like Growth Factor I: Novel Insights into the Male Reproductive Health IntechOpen Effect of 6 weeks of treatment on serum IGF 1. Red bars represent Download Scientific Diagram IGF 1 LR3 does not promote growth in late gestation growth restricted fetal sheep American Journal of Physiology Endocrinology and Metabolism American Physiological Society Recombinant Human LR3 IGF 1 (Media Grade) Recombinant Protein APExBIO