IGF1 LR3, also known as Insulin-like Growth Factor 1 Long R3, is a potent peptide renowned for promoting muscle growth, enhancing recovery, and improving overall athletic performance. This compound is an extended version of IGF1, with the “LR3” indicating a longer half-life, which makes it more effective in the body. IGF1 LR3 works by mimicking the anabolic effects of insulin, thereby increasing the uptake of glucose and amino acids into cells, which leads to enhanced protein synthesis and muscle growth. Bodybuilders and athletes favor it for achieving lean muscle mass and accelerated recovery.