La Roche-Posay Effaclar Ultra Concentrate Serum (30ml) is a powerful treatment serum specifically designed for acne-prone skin. Formulated with a trio of active ingredients—salicylic acid, glycolic acid, and niacinamide—it works to unclog pores, reduce blemishes, smooth skin texture, and fade post-acne marks. This lightweight serum helps control excess oil production while promoting cell renewal, leaving skin clearer and more refined over time. Its gentle yet effective formula is suitable for daily use and is ideal for those dealing with persistent imperfections and breakouts. Dermatologically tested for sensitive skin