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At the end of the evaluation period, the results showed a significant improvement in the skin tone, which was accessed by a hyperpigmentation tool known as the Taylor Hyperpigmentation scale

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Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia

Yes, GHK-Cu is naturally occurring in the human body and is considered very safe when used as directed

Slowing Down Skin Ageing : L-Cysteine supports anti-aging by shielding skin from environmental aggressors that cause fine lines, wrinkles, and pigmentation