igf 1 des vs igf and igf-1 lr3 What is LR3? Insulin-Like Growth Factor Long R3 (IGF-1 LR3) is a modified version of IGF-1 with a longer half-life, making it significantly more potent effective for muscle growth IGF-1 LR3 Research: Extended Half-Life
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Sudarslal S
[DOI] [PMC free article] [PubMed] [Google Scholar] 15.Franco R, Schoneveld OJ, Pappa A, Panayiotidis MI
[4] Lewis DD, Villarreal FD, Wu F, Tan C
Life Sci 381:123981
