IGF-1 LR3

IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is a synthetic long-acting analog of insulin-like growth factor-1 engineered to enhance receptor affinity and extend metabolic stability, used exclusively in research to investigate cellular growth signaling, protein synthesis pathways, and metabolic regulation; it is not an approved drug for these purposes, and its safety, efficacy, and appropriate dosing in humans for experimental applications have not been clinically validated.