DescriptionTreat your skin to Eucerin® Dermo PURIFYER Cover Stick? a dermatologically tested? oil-free blemish treatment that works to reduce the appearance of blemishes and cover imperfections.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.