The lightweight-soft texture of Vince Sunblock combines anti-UVB filters with Titanium dioxide. Titanium dioxide works as a UV filtering ingredient in sunblocks it helps protect a person's skin by blocking the absorption of the sun’s ultraviolet light that can cause sunburn. A higher SPF blocks out more rays & Offers slightly more protection. Vince Sunblock SPF 75 offers superior broad-spectrum protection from aging UVA rays and burning UVB rays than comparable products with lower SPF values. It goes on easily and absorbs quickly for an invisible, lightweight feel on your skin. Vince Sunblock SPF 75 is the latest scientifically developed moisturizing oil-free lotion that helps protect the skin against UVA and UVB rays, and also helps to prevent the formation of dark spots and discoloration.