Discover Peter Thomas Roth Skin To Die For Mattifying Primer, a sheer, lightweight, mattifying primer that provides immediate results and long-term benefits. AuraSpheres and Gransil EP-9 instantly blur, fill, and reduce the look of pores, fine lines, and imperfections. A powerful mattifying complex absorbs excess oil with AberMat™ while powerful Disa-Pore 20 and Evermat™ help reduce the appearance of pore size and shape over time. Great to use under makeup for flawless, professional-looking results, or alone for a naturally beautiful, no-filter look, this primer features a subtle, universal tint that instantly blends with any skin tone and shade.