What is IGF-1 LR3?

IGF-1 LR3 is a modified, longer acting analogue of insulin-like growth factor 1, engineered to resist the binding proteins that normally clear natural IGF-1 quickly from the bloodstream. It is studied in animal research for muscle growth and tissue repair through activating satellite cells. This site's review found no human trial citations for it, only preclinical data, and it is not FDA approved.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of growth hormone secretagogues. Sermorelin, tesamorelin, ipamorelin, CJC-1295, and the rest of the GHRH and ghrelin receptor family.