La Roche-Posay Niacinamide 10 Serum is formulated with 10% of pure Niacinamide that corrects every dark spot and mark, pigmentation issue and uneven skin tone. Micro-inflammation is the common trigger for every pigmentary disorder and leads to an over-production of melanin. The key active ingredient 10% Pure Niacinamide is a leading dermatological molecule that fights every dark spot and mark as well as pigmentation issues caused by micro-inflammation. Hypoallergenic. Non-Comedogenic. Suitable for all skin types (even oily). Tested under dermatological control How to use: Apply to the face in the evening. Repairs skin barrier and superficial procedures. Do not apply on non healed skin.