La Roche-Posay Effaclar Ultra Concentrated Serum 30Ml Is An Anti-Imperfections And Anti-Marks Serum For Daily Peeling.It Is Formulated With A Complex Of 3 Ultra-Concentrated Complementary Acids, Combined With Soothing Niacinamide :The Salicylic Acid Unclogs And Tightens The Pores,Lha Gently Smoothes The Surface Of The Skin,Glycolic Acid Improves Skin Renewal.Absorption Is Fast And The Finish Is Non-Sticky.