ONE/SIZE by Patrick Starrr On 'Til Dawn Mattifying Waterproof Setting Spray. Meet the viral bestseller: This ultra-light, mattifying setting spray delivers a non-sticky formula that’s waterproof, sweat-proof, and smudge-proof. Non-comedogenic, dermatologist-tested formula won’t clog pores while a breathable, fine polymer film blend locks in makeup for next-level hold up to 16 hours. LTKWatchNow LTKFindsUnder50 LTKBeauty