concentrated formula of exfoliating acids with soothing niacinamide that targets blackheads blemishes marks and visible pores. This no-rinse formula leaves skin polished and clear. How to use: Apply in the evening to the entire face after cleansing the skin with Effaclar Purifying Foaming Gel. Texture and consistency Light fast-absorbing serum for easy and fast daily application. Non-sticky non-greasy finish. Key Benefits This serum provides the perfect balance of exfoliating and soothing effects unclogging pores and correcting stubborn imperfections and marks day after day. Innovation from La Roche-Posay: The first ultra-sensory care from La Roche-Posay combining in its formula this high concentration of synergistic active ingredients: 3 keratolytic acids to reduce imperfections and marks + Niacinamide andThermal Spring Water for a soothing and anti-redness effect. Its effectiveness is proven against the recurrence of imperfections. Especially adapted for acne-prone skin highly tolerable. Non-comedogenic.