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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.


An active ingredient intended to stop the oxidation of skin structures (DNA, proteins, lipids), which is responsible for premature cutaneous ageing and the appearance of cancer cells.


Substances (vitamins, oligo-elements, micronutrients, etc.) that reduce or prevent the oxidation of other chemical substances and that protect the body against damage caused by free radicals or reactive oxygen species.