Janson Beckett Anti-Aging System

Category: File - :SPF15SunBlock.JPG|thumb|300px|| tube of factor 15 sun block lotion

Sunscreen (also commonly known as sunblockNassau County Health Department Jacksonville online or sun cream) is a lotion, spray, gel or other topical product that absorbs or reflects some of the sun's ultraviolet (UV) radiation on the skin exposed to sunlight and thus helps protect against sunburn. Skin lightening products have sunscreen to protect lightened skin because light skin is susceptible to sun damage. Meanwhile, sunscreen products have skin whitening ingredient.

Sunscreens contain one or more UV filters of which there are three main types:Shaath, N. (2005). "The Chemistry of Ultraviolet Filters," in Regulations and Commericial Development 3rd edition, edited by N. Shaath, Taylor and Francis Press, New York. 954pp, 2005.

* Organic chemical compounds that absorb ultraviolet light (such as oxybenzone, a suspected photocarcinogen)

* Inorganic particulates that reflect, scatter, and absorb UV light (such as titanium dioxide, zinc oxide, or a combination of both).

* Organic particulates that mostly absorb light like organic chemical compounds, but contain multiple chromophores, may reflect and scatter a fraction of light like inorganic particulates, and behave differently in formulations than organic chemical compounds. An example is Tinosorb M.

Medical organizations such as the American Cancer Society recommend the use of sunscreen because it prevents the squamous cell carcinoma and the basal cell carcinoma.[http://www.cancer.org/docroot/PED/content/ped_7_1_What_You_Need_To_Know_About_Skin_Cancer.asp] What You Need To Know About Skin Cancer However, the use of sunscreens is controversial for various reasons. Many do not block UVA radiation, which does not cause sunburn but can increase the rate of melanoma (another kind of skin cancer), so people using sunscreens may be getting too much UVA without realizing it. Additionally, sunscreens block UVB, and if used consistently this can cause a deficiency of vitamin D.