L’Oreal Paris’ Prime Lab Advanced Derm Primers are a collection of skin-loving primers that extend makeup wear for up to 24H and visibly improves skin over time. Formulated with tried-and-true skincare ingredients, each primer targets a specific skin need with its unique formulation. Pore Minimizer with AHA, LHA, BHA Complex to refine the look of skin texture. Find all primers. The Dullness Reducer with Niacinamide instantly corrects dullness for tan to deep skin tones. Matte Setter with LHA plus Salicylic Acid to rebalance skin. Redness Eraser with Niacinamide to neutralize the look of redness. These formulas are dermatologist tested for skin safety, non-comedogenic so they won’t clog pores, and paraben-free.