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It is modified with: An arginine substitution at position 3 (hence Arg3) An extended amino acid chain that lengthens its half-life from a matter of minutes to around 2030 hours This modification prevents IGF-1 LR3 from binding to IGF-binding proteins (IGFBPs) as readily, allowing it to remain active in the bloodstream longer and exert more potent effects
It won't be available by prescription until 20272028 at the earliest
J Endocrinol (2001) 171(1):97108
Limitations of Third-Party Testing While valuable, third-party testing isn't foolproof: Snapshot in Time: Tests represent the specific batch tested, not necessarily all products
Your provider will review your health history, goals, medication options, potential side effects, and whether a GLP-1 medication or another treatment approach may be a good fit