Treat your skin to eucerin dermo purifyer active night care a dermatologically tested oil free formula that works to purify the complexion whilst supporting skins natural overnight regeneration dedicated to oily blemish prone skin the dermo purifyer range addresses the four skincare key factors hyperkeratosis disrupted skin cell shedding seborrhea excess sebum production microbial colonisation increased bacteria proliferation and irritation of the skin fortified with lactic ac