What It Is:A color-correcting makeup primer that conceals redness and irritations while prepping and smoothing skin for flawless makeup application. Provides 24-hour hydration.*What It Does:Clarins' New makeup primers address every skin concern: dullness, dark spots, redness or shine. The green Sos primer contains sclareolide, obtained from clary sage, a soothing ingredient for an even complexion. This innovative, 94% skincare formula helps balance the skin's microbiome with Clarins' proprietary Microbiote Complex, a nutrient-rich, mineral-rich blend of marine prebiomes, including seawater, chlorella and laminar extracts plus saffron flower polyphenols, for smooth, radiant, well-balanced skin.Key Ingredients:- Sclareolide, obtained from clary sage, soothes skin.- Sea water, chlorella and laminaria extracts help balance the skin's microbiome.- Saffron flower polyphenols improve skin's resistance to daily aggressors.How To Use It:- As a makeup primer: Color correct redness by applying to clean, moisturized skin. Use alone, use under your foundation or mix a small amount with foundation and blend evenly over your skin.- As a targeted corrector: Apply selectively to red, splotchy areas. Top with a touch of foundation and blend with fingertips.- For multiple concerns: Use several shades at once (a different tone for each problem area) and blend.Clinical Results:After the first application:- 91%: preps skin for makeup application.**- 86%: complexion is even.**- 83%: imperfections are blurred.***Clinical test on 24 volunteers.**Satisfaction test on bare skin with 111 women after 28 days of use.