IGF-1 LR3 is the long-acting version of IGF-1 — the body's most powerful anabolic signal. The LR3 modification extends its active half-life from 15 minutes to 20–30 hours, making it dramatically more effective for muscle growth, recovery, and cellular repair research.
IGF-1 (Insulin-like Growth Factor 1) is the body's primary anabolic hormone — responsible for muscle growth, cellular repair, and tissue maintenance. It's produced in the liver in response to growth hormone and acts on virtually every cell in the body. The problem with native IGF-1 is that it's rapidly neutralised by binding proteins in the bloodstream, giving it a half-life of just 15 minutes.
IGF-1 LR3 solves this. The LR3 modification — a small structural change that reduces binding protein affinity — extends active half-life to 20–30 hours. This means sustained IGF-1 receptor activation that is simply impossible to achieve with the natural molecule. The result is a dramatically more useful research tool for studying everything IGF-1 controls: muscle hypertrophy, cellular survival, glucose metabolism, and tissue regeneration.
It's widely used in performance research, muscle biology, anti-aging studies, and cancer cell biology. Sharp Labs IGF-1 LR3 is supplied as lyophilized powder at ≥98% HPLC purity, with a Certificate of Analysis included with every order.
COA INCLUDED — SHIPPED WITHIN 48H — EUROPE-WIDE DELIVERY
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