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A: In neurotrophic activity assays, Dihexa has been found to be seven orders of magnitude more potent than brain-derived neurotrophic factor (BDNF)
AHK-Cu (alanine-histidine-lysine copper) has some published evidence for cosmetic formulation use, but lacks GHK-Cus documented gene expression data, wound healing evidence base, and 50+ year research history
2013 Jan;344(1):141-54
Any weight loss they experience is attributable to those co-treatments, not to GHK-Cu itself
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