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Does GHK-Cu really work for collagen and wrinkles
Abstract Circadian rhythms orchestrate nearly all physiological and behavioral functions, and their deterioration with aging contributes to sleep disruption, cognitive decline, and increased vulnerability to disease
Ethics statement The animal study was approved by the University of Oxfords Animal Welfare and Ethical Review Board (AWERB), and adhered to the Animal Research: Reporting of In Vivo Experiments (ARRIVE) guidelines
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J Pharmacol Exp Ther 315:6979
Parsamanesh N et al
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