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Copper Peptide Products Versus Retinoids and Cosmetic Actives Cu-GHK has been compared with vitamin C and retinoic acid in a small collagen-production context summarized in a topical peptide review, where collagen increased in 70% of Cu-GHK-treated participants versus 50% with vitamin C and 40% with retinoic acid after one month [2]
The study administered a dosage of 500mg twice per day for six weeks in a randomized, placebo-controlled, and crossover-designed trial
The serotonin 5-HT6 receptor: a viable drug target for treating cognitive deficits in Alzheimers disease
Darwish et al., 2019)
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