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Researchers have reported that GHK-Cu can shift gene activity tied to collagen, elastin, and glycosaminoglycans, and it can also affect enzymes that chew up collagen in aged skin models
10.1038/s41386-019-0486-5 11
The most notable finding was that the weight loss was specifically fat loss, particularly in the abdominal area
Journal of Ethnopharmacology, 137 (3), 1143-1148
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