The anti-pollution efficacy of cosmetic ingredients can be evaluated in preventive and/or curative with IN VITRO METHOD on cell line exposed to stress induced by cigarette smoke compounds.
Under the conditions of an USE TEST performed in a polluted environment in China, the efficacy of a cosmetic product is established when :
- maintaining the pH,
- strengthening the skin barrier [TEWL],
- improving the complexion’s radiance [Goniolux 4D, C-Cube].
More specific protocols are proposed such as skin surface samples to measure heavy metals and sebum lipids [fatty acids, squalene, triglycerides…).
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