What it is: A loose setting powder that helps finish and perfect foundation for a look that's smooth and flawless. Who it's for: Ideal for those with oily skin.What it does: This oil-absorbing, 100% oil-free sheer powder formula is ideal for helping your skin maintain a shine-free finish. It instantly sets makeup, too. How to use: For a natural look, apply over foundation using a powder brush. For a more matte, velvety finish, use the powder puff to gently press the powder onto your skin. Dust off any excess with a brush.