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GHK-Cu (Copper Tripeptide) is a copper-binding peptide complex formed by the tripeptide glycyl-L-histidyl-L-lysine (GHK) coordinated with a divalent copper ion

Though the exact mechanism of action has not been fully elucidated, GHK-Cu may work against aging due to antioxidant effects

Quercetin A widely studied flavonoid with antimicrobial, antioxidant, and anti-inflammatory properties, quercetin modulates gut microbiota, reduces hepatic triglyceride accumulation, and downregulates TLR4-mediated signalling

This context is part of an Alpine metro-mountain system , where economic, social, and cultural dynamics are shaped by mountain-lowland interactions (Dematteis, 2018)