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Management of different triggering factors effects in sensitive skin with a specific dermo-cosmetic product
Management of different triggering factors effects in sensitive skin with a specific dermo-cosmetic product
Polena Helena, Fontbonne Arnaud, Abric Elise, Giraud Félix, Chavagnac Marlène, Graizeau Christelle, Ardiet Nathalie, Trompezinski Sandra, Sayag Michèle
NAOS Group, Aix-en-Provence, France
NAOS ILS, Aix-en-Provence, France
Related topics
Sensitive skin syndrome (SSS) is characterized by barrier function alteration and inflammation in response to several stimuli (mechanical, chemical, thermal, pollution…) but no consensus exists on how to assess SSS.
We evaluated in subjects with SSS the impact of a dermo-cosmetic product on mechanical and chemical factors and developed an innovative model with heat-cold stress.
To confirm its efficacy, the product was evaluated on skin barrier function, immediate and long-lasting soothing effect after stripping or chemical irritation (temperature, microcirculation, capsaicin test), and on Asiatic and Caucasian subjects. In a slit face study, 30 females with SSS applied the product on one half-face for 28 days twice daily. At day 0 (D0) and D28, heat-cold stress was performed on both half-faces (radiofrequency system and dry air by 3 cycles 45±5°C,15±5°C). Before and after stress, IL-1α and S100A8/9 release, hydration and global score of unpleasant sensations were measured.
After 28 days of product application, the product significantly improved skin barrier and presented a soothing effect whatever the triggering factor. In addition, up to 91% of Asiatic and Caucasian sensitive skin subjects judged the product efficient and the burden of sensitive skin significantly improved (BoSS score -14.1%). The product significantly reduced IL-1α after heat-cold stress at D0 (32.6%, p<0.001), and at D28 (27.7%, p<0.01) vs control. At D0 and D28, the S100A8/9 release with heat-cold stress was prevented by the product. Moreover, the product significantly improved hydration (up to +45%), and the global score (down to -50%) before and after heat-cold stress vs control.
Thus, the dermo-cosmetic product protected skin from mechanical, chemical, and heat-cold aggressions, in addition to pollution/UV previously studied. Through this innovative model, IL-1α and S100A8/9 seem to be relevant biomarkers to assess SSS.
Polena Helena, Fontbonne Arnaud, Abric Elise, Giraud Félix, Chavagnac Marlène, Graizeau Christelle, Ardiet Nathalie, Trompezinski Sandra, Sayag Michèle
NAOS Group, Aix-en-Provence, France
NAOS ILS, Aix-en-Provence, France
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