GLOSSARY

Is there a term from the field of dermatology and cosmetics that you do not understand? Would you like to know what it means? View the full definition from the La Roche-Posay glossary.

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Chemical filter

A chemical filter is a synthetic molecule that protects against ultraviolet rays by absorbing their energy. To achieve quality filtration of all UV rays, you must combine filters that are effective against UVB's and other filters which target UVA's.

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