The Obagi Sun Shield Mineral Broad Spectrum SPF 50 is a clear-drying sun protection agent that guards against damaging UVA and UVB sunrays. Sun Shield Mineral is formulated with 4.7% light-stable zinc oxide combined with 4.9% titanium dioxide formulation to protect the skin against harmful effects of the sun. The sunscreen features Invisible Zinc Technology: naturally sourced, microfine zinc oxide that leaves the skin with a unique, dry finish. Also contains Ceramides that help to repair and restore the skin’s natural protective barrier, as well as Niacinamide, a moisturizing Vitamin B derivative that helps to soothe and support skin’s overall health. Sun Shield Mineral Broad-Spectrum SPF 50 is oil-free, non-comedogenic, and non-irritating, making it suitable for all skin types even the most sensitive. Sunscreen is water-resistant for up to 40 minutes.