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Skin care serum with azelaic acid for sensitive and hypersensitive skin The serum has been developed for skin prone to redness It promotes skin density and has a pH of 5.0 Helps to soften the appearance of couperose and strengthen the vascular walls In addition, the serum has an anti-inflammatory effect › See more product details; Product description Product description Skin booster care serum with 10% azelain for sensitive skin and redness. Safety Warning KEINE; Product description Product description Skin booster care serum with 10% azelain for sensitive skin and redness. Safety Warning KEINE; Product description Skin booster care serum with 10% azelain for sensitive skin and redness. Safety Warning KEINE