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GHK-Cu vs TOPICAL COPPER PEPTIDES If you have spent any time researching skincare, you have seen copper peptides in serums and creams from brands like The Ordinary, NIOD, and dozens of others
2008 Sep;326(3):745-53
Usually mild injection-site irritation, occasional nausea, rare rash
With growing evidence on synergy, it's a promising tool for healthspan extension
The inhibition is competitive glutathione competes with tyrosine (the amino acid tyrosinase acts on) for enzyme binding sites which is why the relationship between dosing, delivery method, and effect is not linear
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