Glam featured Dr. Bruce Katz in an article entitled "Why You May Want To Skip Your Skincare Routine This Summer In Favor Of Just SPF."
First and foremost, your sunscreen should always be the first product you apply to your skin — even before foundation. "Don't rely on makeup for the best source of SPF, as it's notoriously unreliable in terms of the level of protection," noted board-certified dermatologist Dr. Bruce Katz while speaking to Makeup.com by L'Oréal. "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."