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Safety is often tied to the dosage and the delivery method
A change in gene-expression pattern does not necessarily mean a direct or predictable biological effect across all systems
Clinical trials provide compelling evidence of GHK-Cu's anti-aging efficacy
This is the study that matters most for the "before and after" question, because it used the exact demographic most GHK-Cu consumers belong to: women over 50 with real photodamage, not 25-year-olds with minor texture concerns
The GH/IGF-1 axis in ageing and longevity
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