Allez au contenu Allez à la navigation

glossary

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.

U

UVA

Emitted by the sun, these ultraviolet rays that reach the surface of the Earth play a significant role in skin pigmentation (tanning), skin ageing and the appearance of skin cancers, among other things.

UVB

Emitted by the sun, these ultraviolet rays that reach the surface of the Earth play a significant role in the occurrence of sunburn, tanning and skin cancers, among other things.