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A 6-month study of 40 men with male pattern baldness found GHK-Cu treatment increased hair density by 29% and hair shaft diameter by 18% (Pickart et al., Journal of Cosmetic Dermatology, 2021)
doi:10.3390/ijms19010011 9
Wang Z, Zhang Y, Ju E, Liu Z, Cao F, Chen Z, et al
In addition, biological interpretation and validation of results requires comprehensive understanding of the relevant field and further experimental confirmation (Ivanisevic and Sewduth, 2023)
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