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The best use-case lanes 1) Barrier-compromised and sensitised skin (when formulated well) Copper peptides are frequently used in formulas positioned as supportive and reparative
Selank Why its interesting: Nootropic and anxiolytic peptide
Rosenblad, C
Its structure enables stability in gastric acid, unlike many other peptides that degrade in acidic environments
GHK-Cu's genuine advantage is its low irritation profile and its potential to work alongside other actives without retinoid sensitivity concerns
The evidence base here is thin and largely theoretical, but the concept aligns with established pharmacology of intranasal peptide delivery systems used for other compounds
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