Bioderma Sebium Pore Refiner Corrective Care for Enlarged Pores in Beauty: NA. Bioderma Sebium Pore Refiner Corrective Care for Enlarged Pores in Beauty: NA. Bioderma Sebium Pore Refiner Cream counters the negative effects of excess oil, stress, and pollution to give you smoother, clearer skin. This lightweight, spreadable correcting concentrate refines skin texture by tightening the pores and making them less visible. Patented Fluidactiv technology regulates sebum production, keeping pores clear and clog-free while preventing the formation of blemishes.. Agaric acid, a powerful astringent, tightens pores, while antioxidants preserve the skin's natural radiance. Suited for combination, oily, or blemish-prone skin. Hypoallergenic, paraben-free, and non-comedogenic. 1.33 fl oz. Use with Sebium Foaming Gel. BDER-WU24. 28614I. A pioneer in skincare since the 1970s, BIODERMA has acquired unique expertise by placing biology at the service of dermatology. This scientific approach relies first and foremost on knowledge of the skin and its biological mechanisms to formulate products directly inspired by them. BIODERMA's approach involves reactivating the skin's natural resources to help it resist and recover its normal functions, restoring skin to its healthiest state.