Never used. This sheer, broad-spectrum, oil-free sunscreen works to protect against harmful UVA and UVB rays with no white cast. Sheer Protection is suitable for all skin types and skin tones thanks to thinly sliced micronized zinc that results in a smoother application and more thorough coverage. We've also enhanced the formula with caffeine to help shield skin cells from UV radiation damage and slow down sun damage that leads to dark spots and wrinkle formation. Additionally, lactic and hyaluronic acids work together to brighten and hydrate dull skin, completing the ultimate skincare regimen.