Treatment for oily skin with imperfections under the effect of external aggressions (pollution, tobacco, dust ...), which undergoes an oxidation process that causes various reactions in the skin (hyperkeratinization, hyperproduction and oxidation of sebum and impurities) that lead to imperfections such as blackheads, open pores and uneven relief. In response to this problem, the La Roche-Posay Research Department created Effaclar K+, a dermatological treatment for oily or acne-prone skin, skin renewing, anti-oxidant and anti-sebum 8H.