Obagi's Physical Defense Tinted Broad Spectrum SPF 50 defends skin from (HEV) visible light (VIS) and infrared rays (IR) and damaging free-radicals known to accelerate the aging process. Lightly tinted and mineral-based, this lightweight sunscreen easily blends into multiple skin tones and complexions, while titanium dioxide and zinc oxide protect against UVA and UVB rays and powerful antioxidants defend against free radical and oxidative stress. Key Ingredients:Titanium Dioxide & Zinc Oxide: provide UVA and UVB protectionAntioxidants: defend against free radical and oxidative stressKey Benefits:Defends skin from high energy visible light (HEV) visible light (VIS) and infrared rays (IR) and free-radical damageLightweight, lightly tinted, sheer and residue-free finishFormulated without chemical sunscreen agents, parabens, synthetic fragrances and dyesHypoallergenic, non-comedogenic, dermatologist-tested, non-sensitizing, non-irritating, and reef safe | Obagi Medical Physical Defense Tinted Broad Spectrum SPF 50, 3. 4 oz | Dermstore