IGF-1 LR3

IGF-1 LR3 (Long Arg3 Insulin-like Growth Factor-1) is a modified analog of IGF-1 with an extended half-life of 20-30 hours compared to just minutes for native IGF-1. Research has explored its role in muscle protein synthesis, cellular proliferation, tissue repair, and body composition. Every batch independently HPLC tested to 99%+ purity. COA on every order. Same-day shipping from our USA warehouse. For research use only.