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10.1073/pnas.2209936120 38 YokoiT.OdaS

Keep the bandage on for one day

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The loss of dopamine-producing brain cells causes it, and its symptoms include tremors, rigidity, slowed movement, and eventually cognitive impairments, such as confusion and memory loss

The deepest mechanistic evidence, going back to Pickart's earliest work, where GHK-Cu improved the speed and quality of tissue repair.[1] This is the area with the strongest biological rationale, even if it's largely from cell and animal models rather than large human trials