IGF-1 LR3

IGF-1 LR3 (Long R3 Insulin-like Growth Factor 1) is a synthetic analogue of the naturally occurring IGF-1 protein. Comprising 83 amino acids, it includes an arginine substitution at the third position and an extra 13 amino acids at the N-terminus. These modifications significantly increase its stability and biological activity, making it roughly three times more potent than native IGF-1 and promising for research. Additionally, its half-life is extended to approximately 20–30 hours, compared to the 12–15 hour half-life of regular IGF-1.