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Giraud-Billoud, M., Rivera-Ingraham, G

Michael Duben, MD is a Board-Certified Endocrinologist with over 20 years of clinical experience, trained at Mount Sinai and Albert Einstein College of Medicine

The connection between GHK-Cu, copper delivery to copper-dependent enzymes, and downstream effects on collagen and matrix biology has substantial supporting research across multiple decades

Users with very reactive skin often do better with PDRN or niacinamide, both of which deliver regeneration and barrier support with a gentler profile

Hence, purging can only result from products with active ingredients such as Retinol, Benzoyl Peroxide, Hydroxy acids, L ascorbic acid, etc