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GHK-Cu occupies a more complex regulatory position: it is legally used as a cosmetic ingredient in topical formulations, but its use as an injectable compound for systemic effect is not approved and constitutes an unlicensed medicinal use
There's no quality assurance and no way to verify what you're injecting
Park, S
As we age, our natural levels of GHK-Cu decline by over 60%, leading to thinner skin, hair loss, and slower recovery
But injections give a much bigger dose
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