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Evidence boundary The largest Phase 2b trial used oral dosing for 24 weeks and did not show statistically significant weight loss versus placebo
2 Inhibits melanin production
Role and Function Vitamin B9 acts as a coenzyme and is essential for cell growth, DNA formation and amino acid metabolism
J., Park, Y
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
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