If your daily sun exposure is just what you get walking from your car to the office, then you’re fine with the SPF in your foundation. But if you plan on taking a walk or having lunch outside then you need to apply sunscreen underneath your makeup and reapply sunscreen 30 minutes before going outside.

During the day you can add mineral makeup with SPF over your makeup for more protection, or use a sunscreen with tint so you can reapply before lunch without messing up your makeup. — King