La Roche-Posay Effaclar Purifying Mask is a deep cleansing clay mask specifically formulated for oily and acne-prone skin. This sebo-controlling mask helps absorb excess oil, purify pores, and reduce shine while being gentle enough for sensitive skin. This purifying mask is designed to deeply cleanse and mattify oily skin while respecting its natural balance. The formula contains kaolin clay to absorb excess sebum and impurities. As a personal care product for facial skincare, it should be applied to clean, dry skin and left on for 5-10 minutes before rinsing thoroughly with water. The 100ml tube format makes it convenient for regular use as part of an anti-acne skincare routine.