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This is a hot area of research for 2026, and several promising strategies are emerging

GHK-Cu regulates MMP expression and activity, increasing some MMPs to remove damaged matrix while controlling excessive degradation

Mediators Inflammation (2020) 2020:1693730

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The active functional component of glutathione is the thiol (-SH) group located on its cysteine residue

This study established the foundational mechanism linking GHK-Cu to collagen synthesis and is among the most cited references in the copper peptide literature