Sunscreen: Difference between revisions

The effects and the benefits are very well known in regards to sunscreen, but what causes it function properly?  Sunscreen is made up of many active ingredients that give it its ability to block the sun’s dangerous rays.  The active ingredients produce a thin cover over the skin that causes the UV rays from entering the skin.  The active ingredients include avobenzone, oxybenzone, and benzophene. These three main chemicals absorb the UV rays.  Most chemical sunscreens only protect the skin from UVB rays, but there are many that provide protection from both rays.  Physical sunscreens, or sunblock, gives protection from both the UVB and the UVA rays.  Sunblock reflexes the sun’s rays back into the atmosphere by using ingredients such as zinc oxide and titanium dioxide.  Due to the varieties of sunscreens, there are some brands that use both chemical and physical ingredients.<ref>Barrymore, John. [http://health.howstuffworks.com/skin-care/beauty/sun-care/active-ingredients-in-sunscreen.htm What are the active ingredients in sunscreen?] ''Skin Cancer Foundation''. Web. May 1, 2016- last updated.</ref> <ref>Griffin, R. Morgan. [http://www.webmd.com/beauty/sun/whats-best-sunscreen What’s the best sunscreen] ''WEB MD''. Web. May 1, 2016- last updated.</ref>