IGF-1 LR3

Growth Factor — IGF-1 Analogue IGF-1 LR3 is a recombinant analogue of insulin-like growth factor 1 with a modified N-terminus (Arg³ substitution) and 13-amino acid extension that dramatically extends half-life. It is 2–3× more potent than native IGF-1 and does not bind IGF binding proteins, making it significantly more bioavailable. Half-Life: ~20–30 hours (vs 15 min native IGF-1) Potency: 2–3× native IGF-1 IGFBP Binding: Reduced — higher free fraction