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Dermatological glossary

Dermatology and your skin from A to Z with our Dermatological Glossary: a dermatological glossary of essential words you need to know to better understand dermatological products and how your skin works.


Co-factors of many enzymes involved in our bodies' metabolic chemical reactions.


A major cause of cutaneous ageing, it is the result of an imbalance between oxidants (increased) and anti-oxidants (decreased) responsible for the alteration of biomolecules (DNA, carbohydrates, proteins, lipids).