Description
IGF-1 LR3 (Long Arg3 Insulin-Like Growth Factor-1) is a synthetic analog of human IGF-1, modified to enhance stability and bioavailability in experimental models. The substitution of an arginine at position 3 and an extended amino acid chain delays binding to IGF-binding proteins (IGFBPs), allowing for prolonged activity compared to native IGF-1. IGF-1 LR3 is widely used in in vitro research to explore cell proliferation, differentiation, and protein synthesis pathways, as well as its influence on muscle cell cultures, neuronal growth, and tissue regeneration models.
LunaRider_23 –
IGF-1 LR3 is amazing! I’ve gained mad muscle mass using this product. Super easy to inject and noticed results quickly. Definitely worth the money – a great investment for serious bodybuilders. High recommend!
Emily Smith –
IGF-1 LR3 really helped with muscle recovery after intense workouts. Noticed a difference in strength and endurance. Easy to inject with insulin syringes. Great value for the results! I’ve been using it for a month now and I’m pleased with the progress. Highly recommend for fitness enthusiasts looking to enhance their performance and see gains in the gym.