Prolonged Stimulation of Growth Hormone (GH) and Insulin Like Growth Factor I Secretion by CJC 1295, a Long Acting Analog of GH 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 Boost Your Growth Hormone Production with CJC 1295 Ipamorelin CJC 1295 Ipamorelin Weight Loss: Does It Work? LIVV Prolonged Stimulation of Growth Hormone (GH) and Insulin Like Growth Factor I Secretion by CJC 1295, a Long Acting Analog of GH