A triple-action serum with Thiamidol that reduces post-inflammatory hyperpigmentation and dark spots following acne. With salicylic acid that reduces spots and blemishes, Licochalcone A that calms skin and has a mattifying effect. For improved efficacy, use Triple Effect Serum in combination with DermoPurifyer Protective Fluid SPF30 Day cream.How to use:Apply morning & evening all over your face. Avoid the eye area. Improved efficacy when the product is used in combination with DermoPurifyer Oil Control Protective Fluid SPF. Do not use on children under the age of 12. A tingling sensation may occur. Do not apply on very inflamed skin. Do not use in combination with other products containing Thiamidol. 40 ml Eucerin DermoPurifyer Triple Effect Serum 40 ml