Sheer Cover Nourishing Moisturizer 2 OZ Sealed This Nourishing Moisturizer is lightweight and has an SPF 15 to protect your skin from the sun. It's Oil Free and won't irritate your skin under the mineral foundations. It's important to moisten your skin before applying the mineral foundations. If your skin is not moisturized, the foundations tend to be a bit dry and not adhere completely. This moisturizer also works to protect your pores, so that the mineral foundation adheres to the moisturizer and is not directly applied to your pores.