what does BB do?PRIMES: Wear alone, or under your favorite foundation to create a smooth canvas.PERFECTS: Tinted formula in 5 shades evens out skin for a flawless finish.HYDRATES: Improves skin moisture in 4 weeks. Guaranteed.PROTECTS: SPF 35 guards against UVA/UVB rays.CONTROLS OIL: Minimizes shine with no chalky finish.