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GHK-Cu Cosmetic for Healthy Skin Aging and Wrinkle Support GHK-Cu (Copper Peptide) is a naturally occurring peptide in the human body that plays a crucial role in skin regeneration , collagen stimulation , and anti-aging skincare

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Correspondingly, ZD results in developmental retardation of children, delayed genital development and hypogonadism, skin disorders, hair loss, teratogenic effects, as well as weakened immune function, leading to an increased susceptibility to infections

[8] No serious systemic events attributable to topical GHK-Cu have been documented in the literature to date, yet comprehensive long-term surveillance data are still limited

At zinc doses higher than 50 mg/day, symptoms such as nausea, diarrhoea and abdominal discomfort may occur, whilst doses higher than 150 mg/day can adversely affect the bodys lipid profile and immune system

doi: 10.1038/cdd.2015.127 112 DengQZouPDuPShiYPiZXiaoYet al