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This way, your skin can gradually build tolerance and receive the full benefits of copper peptides and retinol

This mechanism raises the critical discontinuation question - does stopping GHK-Cu immediately halt enhanced collagen production returning synthesis rates to pre-treatment baseline, or does the improved dermal environment created during treatment continue supporting elevated collagen production through positive feedback mechanisms where better matrix structure itself promotes ongoing synthesis even without continuous peptide stimulation

doi: 10.3390/pharmaceutics15092337 26

A., Prez de la Lastra, J

85 :132-49.e7 148

PMCID: PMC5228623