Eucerin Dermo Purifyer SPF 30 Post Acne Mark Protective Fluid helps you prevent blemishes and, finally, beat post-acne marks with three crucial ingredients. UVA/B filters reduce sun-induced deepening of post-acne marks. Antibacterial Decanediol helps to prevent blemishes, while Licochalcone A soothes irritations. Anti-shine Sebum Regulating Technology provides a long-lasting, dry, and matte finish. Licochalcone A is an extremely effective antioxidant, anti-inflammatory, and skin-soothing substance. When used in skincare products, Licochalcone A reduces inflammation and neutralizes free radicals, which damage skin cells and accelerate the aging process. It helps to protect the deeper epidermal skin layers from UV damage. Decandiol (Decylene Glycol) is a moisturizing component having antibacterial effects. It has been shown to combat germs such as Cutibacterium acnes (which contributes to acne formation) and Staphylococcus aureus (which is crucial in Atopic Dermatitis). Up to 50% of people develop post-acne marks (also known as post-inflammatory hyperpigmentation or PIH), which can continue for up to 5 years. Eucerin DermoPurifyer Protective Fluid SPF 30 is ideal for acne-prone skin with post-acne marks. SPF-protected formula prevents sun-induced darkening of markings.