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PubMed 22
Regular treatments, combined with a healthy lifestyle and proper sun protection, help prolong the effects
It may exist both with and without copper binding, with copper affinity appearing to play a role in biological signaling
Topical GHK-Cu (serums) can generally be used continuously without cycling since systemic copper absorption through skin is minimal
GHK-Cu is regarded in the scientific literature as a well-tolerated peptide with a favorable safety profile
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