nyx cosmetics stay matte but not flat powder foundation warm beige professionalnyxmakeup what it is: a versatile matte powder foundation that creates a smooth, flawless application. what it does: this revolutionary powder foundation can be worn day and night, for every occasion. the mineral enriched formula deflects light, reduces the appearance of pores and creates a smooth complexion. what else you need to know: this foundation is ideal for taking photos, and has a shade to match every skin tone.