Clarify congested skin with the la roche posay effaclar sebo controlling mask the first dedicated clay mask from la roche posay designed to gently remove excess sebum from the skins surface without over drying or causing inflammation the effaclar sebo controlling mask is an ideal skincare treatment for oily and blemish prone skin types formulated with argilla and kaolin clays which remove sebum from deep within the skin the innovative mask will help to mattify skin over time the la roc