https://wikimd.org/index.php?action=history&feed=atom&title=SunscreenSunscreen - Revision history2026-05-12T01:37:49ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.org/index.php?title=Sunscreen&diff=2069660&oldid=prevPrab at 14:41, 15 July 20202020-07-15T14:41:32Z<p></p>
<p><b>New page</b></p><div>'''Sunscreen''' (also known as '''sunblock''', '''suntan lotion''', or '''sun cream''' in the [[United Kingdom]]) is a [[lotion]], spray or other [[topical]] product that helps protect the skin from the [[sun]]'s [[ultraviolet]] (UV) [[radiation]]. <br />
[[File:Sunscreen spray.jpg|alt=Sunscreen spray|thumb|Sunscreen spray]]<br />
== Benefits ==<br />
Sunscreen reduces [[sunburn]] and other [[skin]] damage, with the goal lowering your risk of [[skin cancer]]. <br />
<br />
<youtube><br />
title='''{{PAGENAME}}'''<br />
movie_url=http://www.youtube.com/v/lmkSAVz9Vcc<br />
&rel=1<br />
embed_source_url=http://www.youtube.com/v/lmkSAVz9Vcc<br />
&rel=1<br />
wrap = yes<br />
width=750<br />
height=600<br />
</youtube><br />
<br />
== Suntanning ==<br />
In the [[United States]], the term [[Sun tanning|suntan]] lotion usually means the opposite of sunscreen, and instead refers to lotion designed to moisturize and maximize UV exposure and tanning rather than block it. These are commonly called [[indoor tanning lotions]] when designed for use with tanning beds or just suntan lotion if designed for outdoor use and may or may not have SPF protection in them.<br />
[[File:New Sunscreen Labeling (5829848553).jpg|alt=Sunscreen label|thumb|Sunscreen label]]<br />
== Protection against UVA and UVB ==<br />
The most effective sunscreens protect against both [[UVB]] (ultraviolet radiation with wavelength between 290 and 320 [[nanometre]]s), which can cause sunburn, and [[UVA]] (between 320 and 400 nanometres), which damages the skin with more long-term effects, such as premature skin aging. <br />
<br />
== Mechanism of action ==<br />
Most sunscreens work by containing either an [[organic chemistry|organic chemical]] compound that absorbs ultraviolet light (such as [[oxybenzone]]) or an opaque material that reflects light (such as [[titanium dioxide]], [[zinc oxide]]), or a combination of both. Typically, absorptive materials are referred to as chemical blocks, whereas opaque materials are mineral or physical blocks.<br />
<br />
{{stub}}<br />
<br />
{{Sunscreening agents}}<br />
<br />
[[Category:Sunscreening agents| ]]<br />
[[Category:Chemical mixtures]]</div>Prab