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By increasing the levels of these vital molecules, GHK-Cu peptide helps to restore the skins structural integrity, reducing the appearance of wrinkles and promoting a more youthful, radiant complexion

The research that produced those impressive results like 32.8% reduction in wrinkle depth, 2030% improvement in skin firmness, was conducted with pharmaceutical-grade concentrations delivered under controlled conditions

Conflict of interest The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article

Metformin tops this list, with well-documented effects on b12 levels