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It works best as an alcoholic extract, powdered or dried seed preparation
It slows gastric emptying, reduces appetite signals in the brain, and improves insulin sensitivity
Evidence type: Human RCT | Observational | Animal | In vitro | Regulatory Mechanism of Action As a copper chelator, GHK-Cu modulates over 4,000 human genes, upregulating those involved in tissue remodeling (e.g., collagen I, III) and downregulating pro-inflammatory pathways like NF-B
Karalija N, Johansson J, Papenberg G et al (2022) Longitudinal dopamine D2 receptor changes and cerebrovascular health in aging
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