This is sunscreen—but smarter. The Ordinary UV SPF 45 Serum delivers high broad-spectrum protection in a serum texture that sinks in fast, wears beautifully under makeup, and won’t leave a white cast. Lightweight, effective, and budget-friendly. TheOrdinary SPF45Serum UVFilters EverydaySPF LightweightSunscreen SerumWithSPF NoWhiteCast Over40SkinCare LTKSunCare LTKBeauty LTKOver40 LTKFindsUnder50