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 Over stimulation of insulin IGF 1 signaling by Western diet may promote diseases of civilization: lessons learnt from Laron syndrome Nutrition & Metabolism Springer Nature Link The mighty protein: insulin like growth factor type 1 The Physiological Society Modifying IGF1 activity: an approach to treat endocrine disorders, atherosclerosis and cancer Nature Reviews Drug Discovery GH IGF 1 Abnormalities and Muscle Impairment: From Basic Research to Clinical Practice