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As GHK-Cu penetrates the skin, it works to prompt the production of proteins like collagen and elastin, helping to soften wrinkles and keep complexion firm over time

However, such nanomaterials also have significant limitations: the continuous release of metal ions may cause toxicity, such as the safe dose of zinc ions in ZnTA must be strictly controlled below 5 mg/kg

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Because it is a substance your body naturally produces, daily supplementation is often used to help maintain optimal levels as you age or encounter environmental stressors

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