IGF-1 LR3 (Long Arg3 Insulin-Like Growth Factor 1) is a synthetic research peptide analog commonly used in laboratory environments to study cell growth signaling, receptor interaction pathways, and protein synthesis mechanisms. Its modified structure gives it an extended half-life, making it useful in scientific models that examine IGF-1 receptor activation, cellular proliferation behavior, and metabolic signaling cascades.

Researchers typically utilize IGF-1 LR3 in in vitro assays, cell culture studies, and mechanistic biochemical experiments to observe how IGF-related peptides influence cellular communication, pathway activation, and molecular response patterns under controlled laboratory conditions.

IGF-1 LR3 is not intended for human or veterinary use. It is provided exclusively for laboratory research, analytical testing, and educational investigation, with no claims regarding biological effects or suitability for consumption.