La Roche-Posay Effaclar MAT Is an oil-free mattifying moisturizer that neutralizes the production of oil at its source, reduces sebum flow and the appearance of pore size. This product also provides micro-exfoliation to help visibly tighten enlarged pores while refining skin texture. This moisturizer works well as a base for makeup. It is ideal for oily skin and is suitable for sensitive skin. It is non-comedogenic and has been tested under dermatological control.