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	<title>Comments on: Lesson Burned: Does Sunscreen Actually Reduce the Risk of Cancer?</title>
	<atom:link href="http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/</link>
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		<title>By: Testing&#8230; &#171; Rturpin&#039;s Blog</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1715</link>
		<dc:creator>Testing&#8230; &#171; Rturpin&#039;s Blog</dc:creator>
		<pubDate>Mon, 27 Aug 2012 13:05:40 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1715</guid>
		<description>[...] to testing things we think we know, but have only fuzzy data to confirm. Perhaps we&#8217;ll learn whether sunscreen lotions have any impact on skin [...] </description>
		<content:encoded><![CDATA[<p>[...] to testing things we think we know, but have only fuzzy data to confirm. Perhaps we&#8217;ll learn whether sunscreen lotions have any impact on skin [...] </p>
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		<title>By: Ponham protetor solar &#187; Poupar Melhor</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1714</link>
		<dc:creator>Ponham protetor solar &#187; Poupar Melhor</dc:creator>
		<pubDate>Thu, 16 Aug 2012 08:07:07 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1714</guid>
		<description>[...] Já não é novo que os raios solares podem provocar o cancro. Há agora notícias que em condições específicas de calor um dos ingredientes comuns nos protetores solares.... [...] </description>
		<content:encoded><![CDATA[<p>[...] Já não é novo que os raios solares podem provocar o cancro. Há agora notícias que em condições específicas de calor um dos ingredientes comuns nos protetores solares&#8230;. [...] </p>
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		<title>By: Callie</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1713</link>
		<dc:creator>Callie</dc:creator>
		<pubDate>Sat, 11 Aug 2012 12:00:53 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1713</guid>
		<description>@ Chrystal You need to do your research. Your sunscreen is highly toxic: http://www.ewg.org/skindeep/product/435267/Vichy_Laboratoires_Capital_Soleil_Soft_Sheer_Sunscreen_Lotion%2C_SPF_60/</description>
		<content:encoded><![CDATA[<p>@ Chrystal You need to do your research. Your sunscreen is highly toxic: <a href="http://www.ewg.org/skindeep/product/435267/Vichy_Laboratoires_Capital_Soleil_Soft_Sheer_Sunscreen_Lotion%2C_SPF_60/" rel="nofollow">http://www.ewg.org/skindeep/product/435267/Vichy_Laboratoires_Capital_Soleil_Soft_Sheer_Sunscreen_Lotion%2C_SPF_60/</a></p>
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		<title>By: Emily E</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1712</link>
		<dc:creator>Emily E</dc:creator>
		<pubDate>Wed, 08 Aug 2012 16:22:36 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1712</guid>
		<description>John: Thanks for bringing up this issue. It&#039;s true that there is a dearth of data on the absorption of nanoparticles in broken skin, and what research has been done is concerning: A preliminary 2011 study (abstract here, on the NIH website: http://www.ncbi.nlm.nih.gov/pubmed/21315122) found that nanoparticles easily penetrate &quot;damaged and certain diseased skin.&quot; Would be worth looking into this more in a future story.</description>
		<content:encoded><![CDATA[<p>John: Thanks for bringing up this issue. It&#8217;s true that there is a dearth of data on the absorption of nanoparticles in broken skin, and what research has been done is concerning: A preliminary 2011 study (abstract here, on the NIH website: <a href="http://www.ncbi.nlm.nih.gov/pubmed/21315122" rel="nofollow">http://www.ncbi.nlm.nih.gov/pubmed/21315122</a>) found that nanoparticles easily penetrate &#8220;damaged and certain diseased skin.&#8221; Would be worth looking into this more in a future story.</p>
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		<title>By: Chrystal Ocean</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1711</link>
		<dc:creator>Chrystal Ocean</dc:creator>
		<pubDate>Tue, 07 Aug 2012 22:28:55 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1711</guid>
		<description>Only recently did I begin using sunscreen and that was because I found what looks like a good product. It&#039;s Vichy&#039;s sunscreen, in the 60 SPF variety. Noted on the bottle: &quot;Anti UVA-UVB.&quot; In the list of ingredients, there&#039;s no mention of retinyl palmitate or oxybenzone. Ergo, am hoping all is well and am safe to continue using the product.</description>
		<content:encoded><![CDATA[<p>Only recently did I begin using sunscreen and that was because I found what looks like a good product. It&#8217;s Vichy&#8217;s sunscreen, in the 60 SPF variety. Noted on the bottle: &#8220;Anti UVA-UVB.&#8221; In the list of ingredients, there&#8217;s no mention of retinyl palmitate or oxybenzone. Ergo, am hoping all is well and am safe to continue using the product.</p>
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		<title>By: John</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1710</link>
		<dc:creator>John</dc:creator>
		<pubDate>Tue, 07 Aug 2012 21:44:16 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1710</guid>
		<description>Thanks for such an interesting article. I wish you or some other investigative author would write about the paucity of evidence on the safety of nano particles for broken skin. This is particularly relevant for those of us with rosacea, eczema, or other skin conditions. For us, sun protection is vital, and physical blockers such as zinc oxide and titanium dioxide are the least irritating options. However, when I do find info on nano particles, there doesn&#039;t seem to be anything more than a throwaway line saying that we don&#039;t know what its absorption is in broken skin. It&#039;s the same attitude seen in the “safe until proven harmful” camp that you mention in your article. I suspect that because the afore mentioned skin conditions are considered cosmetic and not life-threatening, it will be a very long time before we see such research on them.</description>
		<content:encoded><![CDATA[<p>Thanks for such an interesting article. I wish you or some other investigative author would write about the paucity of evidence on the safety of nano particles for broken skin. This is particularly relevant for those of us with rosacea, eczema, or other skin conditions. For us, sun protection is vital, and physical blockers such as zinc oxide and titanium dioxide are the least irritating options. However, when I do find info on nano particles, there doesn&#8217;t seem to be anything more than a throwaway line saying that we don&#8217;t know what its absorption is in broken skin. It&#8217;s the same attitude seen in the “safe until proven harmful” camp that you mention in your article. I suspect that because the afore mentioned skin conditions are considered cosmetic and not life-threatening, it will be a very long time before we see such research on them.</p>
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		<title>By: Bertilla</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1709</link>
		<dc:creator>Bertilla</dc:creator>
		<pubDate>Thu, 02 Aug 2012 16:59:14 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1709</guid>
		<description>I&#039;ve got the perfect sunscreen.  It&#039;s called fabric.  Put some on, and you won&#039;t get burned.  Add a big hat for the full effect.</description>
		<content:encoded><![CDATA[<p>I&#8217;ve got the perfect sunscreen.  It&#8217;s called fabric.  Put some on, and you won&#8217;t get burned.  Add a big hat for the full effect.</p>
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		<title>By: IW</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1708</link>
		<dc:creator>IW</dc:creator>
		<pubDate>Tue, 24 Jul 2012 11:05:29 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1708</guid>
		<description>Do we really need to see more women in a state of undress for no other purpose than to show us how to put suntan oil on?  Seriously?

Do you think we don&#039;t know how to put suntan oil on without an undressed woman to show us?

Do you think we don&#039;t know what suntan oil is and only a woman in a bikini can clarify this?

Do you think we won&#039;t understand the article unless we have female flesh to ogle alongside it?

I&#039;d be really impressed if you would post an article not only explaining this, but also justifying it.</description>
		<content:encoded><![CDATA[<p>Do we really need to see more women in a state of undress for no other purpose than to show us how to put suntan oil on?  Seriously?</p>
<p>Do you think we don&#8217;t know how to put suntan oil on without an undressed woman to show us?</p>
<p>Do you think we don&#8217;t know what suntan oil is and only a woman in a bikini can clarify this?</p>
<p>Do you think we won&#8217;t understand the article unless we have female flesh to ogle alongside it?</p>
<p>I&#8217;d be really impressed if you would post an article not only explaining this, but also justifying it.</p>
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		<title>By: Emily E</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1707</link>
		<dc:creator>Emily E</dc:creator>
		<pubDate>Mon, 23 Jul 2012 21:43:12 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1707</guid>
		<description>Hi Steve: Your question about nano-particles is a good one. I left this out of the article because recent studies have shown that-- while metal nano-particles ARE toxic to many living systems (including humans)-- they do not appear to get absorbed through the skin. 

You&#039;re also right that manufacturers began reducing particle size to avoid that thick, pasty-white quality sunscreens used to have in the old days, but there&#039;s an additional benefit: A sunscreen with a variety of nano-metal particle sizes protects against a wider range of wavelengths.

And Georg: When the sun goes nova, I recommend the protection of a rocket-ship :)</description>
		<content:encoded><![CDATA[<p>Hi Steve: Your question about nano-particles is a good one. I left this out of the article because recent studies have shown that&#8211; while metal nano-particles ARE toxic to many living systems (including humans)&#8211; they do not appear to get absorbed through the skin. </p>
<p>You&#8217;re also right that manufacturers began reducing particle size to avoid that thick, pasty-white quality sunscreens used to have in the old days, but there&#8217;s an additional benefit: A sunscreen with a variety of nano-metal particle sizes protects against a wider range of wavelengths.</p>
<p>And Georg: When the sun goes nova, I recommend the protection of a rocket-ship <img src='http://blogs.discovermagazine.com/crux/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
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		<title>By: Georg</title>
		<link>http://blogs.discovermagazine.com/crux/2012/07/17/lesson-burned-does-sunscreen-actually-reduce-the-risk-of-cancer/#comment-1706</link>
		<dc:creator>Georg</dc:creator>
		<pubDate>Sat, 21 Jul 2012 14:53:01 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/crux/?p=1989#comment-1706</guid>
		<description>Which protection factor will we need when the sun will become a nova?</description>
		<content:encoded><![CDATA[<p>Which protection factor will we need when the sun will become a nova?</p>
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