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It is important to notice that The Broad Institute gene profiling was performed with GHK, not GHK-Cu
They dry the skin and can shift pH in ways that destabilize copper peptides
Reduced shedding in 2 to 4 weeks
Backed by decades of research, it's trusted by medical professionals worldwide
The key difference may be that endurance athletes more acutely feel the effects of suboptimal B12 levels during long training sessions
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