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Description
Longer-Lasting Effects: The LR3 variant has a longer half-life compared to regular IGF-1, meaning its anabolic effects last longer in the body, leading to more significant results over time.

doi: 10.1021/ja411006a 121 StockwellB

Kavazis et al., 2009

Whether these differences produce qualitatively distinct GHRHR biology or purely quantitative pharmacokinetic differences is a key comparative pharmacology research question that Tesamorelin versus Sermorelin parallel study designs are specifically designed to address
