IGF 1 LR3 (Insulin like Growth Factor 1 Long R3) is often called the "Holy Grail" of muscle building peptides because of its potent anabolic effects. In a Med Spa context, it is typically sought out LONG R IGF I IGF 1 LR3 1mg Insulin Like Growth Factor Pediatric Implications of Normal Insulin GH IGF Axis Physiology Endotext NCBI Bookshelf Exploring the Therapeutic Potential of Targeting GH and IGF 1 in the Management of Obesity: Insights from the Interplay between These Hormones and Metabolism Peptide Therapy IGF 1 LR3 Revolution Health & Wellness