Eucerin Dermopurifying Triple Effect Serum is a specialized skincare product designed to reduce post-acne marks. Featuring patented Thiamidol technology, this medical-grade serum provides targeted treatment for blemish-prone skin while helping to fade acne scars and marks. This 40ml serum is part of Eucerin's DermoPurifier line of medical skincare products. The formula contains Thiamidol, a patented ingredient that helps address post-acne hyperpigmentation and marks. As a personal care product targeting acne-prone skin, it should be used as part of a complete skincare routine for optimal results.