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High levels of melanin result in darker skin, while reduced melanin leads to lighter skin
Concise Benefits Summary (Research Framing) Skin: Investigated for supporting ECM organization, antioxidant capacity, and cosmetic-science endpoints in lab models
[Abstract] Acta Pharmacol Sin
Reported Skin Irritation and Allergic Reactions to GHK-Cu Topical products can cause irritation, dermatitis, or allergic reactions in sensitive individuals, especially when combined with acids, retinoids, adhesives, dressings, or other active skin-care ingredients
At week 5, participants in the treatment group displayed increased minimal erythema dose (MED) and improved L* values (difference in skin lightness between UV-irradiated and non-irradiated areas)
Similarly, some forms of B12 and Folate are difficult for people with certain genetic variations to process
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