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GHK-Cu also has strong topical relevance in peptide and cosmetic research, although published work notes that skin absorption can be limited without delivery support
They're putting it into your elbow
Research explores potential effects on healing processes under controlled laboratory conditions
Banerjee S, Giannone G, Clamp AR, Ennis DP, Glasspool RM, Herbertson R, et al
No adverse events across 45 patients over 6 months makes copper peptide treatments one of the safest options available for pattern hair loss
However, no human studies have examined truly long-term use extending over years or decades
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