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Ongoing research may lead to a clearer understanding and potential regulatory status, but current data support topical cosmetic use only

To ensure the stability and effectiveness of blue copper peptides in skin care products, there are several key factors to consider: pH value control: GHK-Cu is unstable in a strongly acidic environment, so it needs to maintain a suitable pH value, usually a neutral or near-neutral environment, to maintain its structural integrity and biological activity

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Ongoing monitoring we measure and adjust, rather than guess and hope

This double blind, placebo-controlled, investigator-initiated clinical trial is registered in the Netherlands Trial Register (NTR3858)