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The biological activity of GHK-Cu fundamentally depends on its sophisticated copper coordination chemistry, which enables safe and efficient cellular copper delivery while avoiding the toxicity associated with free copper ions
A: Copper peptide products are usually formulated to be gentle and compatible with coloured or chemically treated hair, especially when applied to the scalp rather than the lengths
If a rash persists, spreads, or comes with swelling, see a dermatologist to rule out allergic contact dermatitis
Nature 536 , 104107 (2016)
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