Eucerin DermoPurifyer Post Acne Marks Reduction Triple Effect Face Serum is an effective solution to reducing persistent post-acne marks and blemishes and prevent their reappearance. The serum helps you see the first visible results in just 2 weeks and continuous improvement over time. Eucerin's DermoPurifyer is a range of effective dermo cosmetic solutions for impure skin. Its products are designed to address four key factors pertaining impure skin: disrupted skin cell shedding, increased sebum production, increased bacteria proliferation and inflammation of the skin. The serum's rich formula is built with Eucerin's patented Thiamidol, a star ingredient that enables you to finally beat post-acne marks and prevent them from reappearing. Salicylic Acid effectively helps reduce blemishes, while Licochalcone A helps prevent new blemishes from appearing. Its sebum regulating technology helps achieve long-lasting, anti-shine, dry and matte finish. This face serum for acne is clinically and dermatologically proven to be suitable for blemish-prone skin with post-acne marks.