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A cool, dark pantry or cabinet is ideal
Adding 1 mL creates a higher concentration with smaller injection volumes, while 2 mL creates a lower concentration that is easier to measure in small increments
Historical cosmetic and preclinical data suggest that topical copper peptides may improve hair shaft diameter and reduce shedding, yet controlled, large-scale clinical trials are sparse
Typically, you would apply a GHK-Cu product once or twice a day as part of your regular skincare routine
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