Dr. Bruce Katz was featured in The List for an article entitled "SPF Vs Sunscreen: What's The Difference?"
While sunscreen always has SPF, not everything that has SPF is classified as sunscreen. Makeup with SPF is not enough to protect your skin. Even if your foundation has SPF, you'll still need to wear sunscreen underneath it. "Don't rely on makeup for the best source of SPF as it's notoriously unreliable in terms of the level of protection," New York City dermatologist Dr. Bruce Katz told Makeup.com. "Plus, makeup isn't always applied evenly and comes off easily, decreasing optimal coverage. You want to wear sunscreen underneath your foundation — it actually provides a better base for your makeup application."