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Its rapid brain penetration, clear doseresponse, and consistent purity make it ideal for EEG, hormonal, and mitochondrial assays

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Applying degraded GHK-Cu delivers free copper ions and amino acid breakdown products instead of the active peptide complex at best, this produces zero collagen synthesis or wound healing benefit, and at worst, free copper can act as a pro-oxidant generating reactive oxygen species that cause irritation, redness, or hyperpigmentation