IGF-1 lr3 is an anabolic peptide commonly use to increase metabolism, promover la síntesis de proteínas, and help bodybuilders gain muscle mass. así que, obviamente, IGF-1 lr3 makes you bigger. No solo eso, IGF-1 stimulate testosterone production in testicular interstitial cells and, together with testosterone, mediate some of the growth-promoting effects of androgens in androgen-reactive tissues. así que, in addition to building muscle, IGF-1 …