Insulin-like growth factor-1 (IGF-1 LR3), also known as Long Arginine 3-IGF-1, is a synthetic protein and an insulin-like growth factor-1 variant (IGF-1). LR3 has an arginine instead of a glutamic acid as the third amino acid in its amino acid sequence, unlike IGF-1. More powerful and lasting over a more extended period. In addition, research […]
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