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What concentration of GHK-Cu works

[DOI] [PMC free article] [PubMed] [Google Scholar] 9.Pang S.Y., Ho P.W., Liu H.F., Leung C.T., Li L., Chang E.E.S., Ramsden D.B., Ho S.L

Topical Application: Shampoo/scalp products: Apply after washing, massaging thoroughly into the scalp Concentration: 4% GHK-Cu for scalp applications Injectable Application: Concentration: 0.1% to 1.0% in injectable topical solutions Dosage: 1-2 mg daily, with treatment protocols specifically designed for the scalp area Research indicates that GHK-Cu may increase hair follicle size, potentially improving both hair growth and thickness