La Roche-Posay Effaclar Mat is a specialized moisturizer designed to control excess sebum and reduce pore size in oily, acne-prone skin. This mattifying formula provides long-lasting shine control while hydrating the skin, making it an ideal daily moisturizer for those with oily complexions. The product contains Sebulyse technology which helps regulate sebum production more effectively than traditional zinc-based formulations. It is non-comedogenic, tested under dermatological control, and suitable for sensitive skin. The moisturizer can be applied morning and/or evening after cleansing, avoiding the eye area. It serves as an excellent makeup base and provides visible results in reducing shine and refining pores. The product remains effective for 12 months after opening.