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Suitable for vegetarians and vegans This product is a nutritional supplement
Our formula combines GHK-Cu with three additional active compounds: tretinoin (prescription-strength vitamin A derivative) for cell turnover and collagen synthesis, estriol for skin elasticity and hydration, and niacinamide for barrier function and inflammation control
Haldys K, et al
10.1002/lary.20602 28 KnutsonJ
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SMJ contributed to conclusion and reviewed/edited manuscript
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