La Roche-Posay Effaclar Unclogging Purifying Anti-Shine Mask is a mask for oily skin with a tendency for blemishes that unclogs the pores, reduces and control shine, removes impurities and deeply cleanses the skin. This gentle clay mask is suitable for both teenagers and adults, even for sensitive skin, as it cleanses deep within the pores without disrupting the skin. This mask prevents blackheads due to the ability to absorb sebum and pollution impurities. Within 4 weeks, the skin looks clearer.