Eucerin Dermo Purifyer Post Blemish Anti-Mark Triple Effect Serum visibly reduces the appearance of post-blemish marks. Eucerin DermoPurifyer Triple Effect Serum with patented Thiamidol enables you to finally beat blemishes and post-acne marks with 3 key factors. Patented Thiamidol acts at the root cause of hyperpigmentation to reduce persistent post-acne marks and prevent their appearance. Salicylic Acid is a particularly effective ingredient that fights the causes of blemish-prone skin: blocked pores and bacterial growth. Licochalcone A is a powerful antioxidant, anti-inflammatory and skin-soothing ingredient. When used in skincare products, Licochalcone A works to reduce inflammation and neutralize free radicals that negatively influence skin cells and accelerate the aging process. It helps to protect the deeper epidermal skin layers from sun-induced effects. Salicylic Acid effectively reduces blemishes and Licochalcone A helps to prevent new blemishes from appearing. Anti-shine Sebum Regulating Technology delivers a long-lasting dry, matt finish. Long after the acute acne has faded, up to 50% of people experience post-acne markings (also known as post-inflammatory hyperpigmentation or PIH), which can last up to 5 years. Acne accompanied by PIH is often more emotionally and physically burdensome than acne alone. Now, thanks to Eucerin, victory is visible. Eucerin DermoPure Triple Effect Serum is the first real solution for post-acne marks. Formulated to treat acne-prone skin with post-acne marks, this serum is clinically proven to fight against acne and visibly reduce persistent PIH with three main factors.