La Roche-Posay Effaclar Mat is a specialized sebo-regulating moisturizer designed for oily skin types. This daily moisturizer helps control excess sebum production, reduces the appearance of enlarged pores, and provides a long-lasting mattifying effect while keeping skin hydrated. The formula contains Sebulyse technology which provides superior sebum regulation compared to traditional zinc-based products. It is specifically developed for sensitive, oily to combination skin types and is non-comedogenic, paraben-free, and dermatologically tested. The product should be applied morning and/or evening after cleansing, avoiding the eye area. It works well as a makeup base and provides visible results in reducing shine and pore appearance with continued use.