Naturally derived from mineral zincite, zinc oxide in sunscreen provides the highest level of broad spectrum UVA/UVB protection. Unlike chemical sun protection, this mineral creates a physical shield to prevent harmful UB rays from entering the skin.  Zinc oxide also has anti-inflammatory benefits for acne, sensitive, sensitized skin, so it's not only used in sunscreen products, but also in makeup, moisturizers, or even diaper rash creams.