How to apply both sunsceen and make up

Dry your face thoroughly.
Apply sunscreen to your face in a thin, even coat. The average adult requires about 1/4 to 1/3 of a teaspoon to cover the face. Use at least an SPF 30, though sunscreens are available in 50 and 60.
Let the sunscreen soak into your skin.
Dab away any excess sunscreen with a tissue.
Apply your foundation as normal. Foundation with an SPF can give you added protection.
UVA and UVB rays can penetrate right through make-up and burn your skin. It’s important to protect yourself and your skin with sunscreen even when you are wearing foundation.
Choose a high SPF-rated sunscreen for your face. Your face naturally tans and burns faster than other parts of the body because the skin is more delicate and more exposed.
There is debate about how often sunscreen should be applied. Some say another application is needed only after swimming or sweating. Other experts say reapplication is necessary every 2 to 3 hours.