What it is: A blemish-fighting, transparent, oil-free SPF 30 mineral powder in a convenient brush applicator. What it is formulated to do: Peter Thomas Roth Oily Problem Skin Instant Mineral SPF30 works immediately to block out the sun's harmful UVA, UVB, and infrared rays to help prevent sunburn, skin damage, freckling, and discoloration. The matte powder absorbs oil, helping to reduce shine and prevent future breakouts. Skin is left looking fresh and flawless. What else you need to know: This finely milled, talc-free powder leaves a residue-free layer of sun protection to help shield and perfect problematic skin. It is the perfect solution for mess-free touchups throughout the day.