YSL Instant Matte Pore Refiner - BRAND NEW IN BOX. WHAT IT DOES: Helps instantly mattify and reduce the look of pores Formulated with salicylic acid, this innovative cream helps refine the look of pores and even skin texture with every use HOW TO USE: Use at the end of the skincare routine, before applying foundation, for targeted care Focus product on the face areas prone to oiliness and visible pores Can be used on the entire face for oily skin Can also be applied on top of makeup Use with All Hours Foundation