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soonbnude
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Posted - 06/14/2017 : 5:41:52 PM
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Thanks to all you guys for this fantastic information. I'm still reading the attached references but as a fair skinned person who needs to build up a tan gradually and use sunscreens this is great information. Well down from down under where the incidence of skin cancer is very high, maybe the highest in the world. Cheers, SBN.
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Country: Australia
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calgarymark
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 Posted - 06/15/2017 : 5:45:13 PM
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I've previously made reference to the UVB lamp my wife uses to provide her with Vit.D (the only way she can get it due to extensive surgery on her digestive system) and I also use the lamp, even though I CAN digest tablets/supplements. I believe [unscientifically, hypothetically, empirically ;-)] that regular modest use of the lamp provides me with some protection from burning when I eventually do get out in the sun. Yes, I do use sunscreen initially, but soon develop a greater tan and no visible redness or feeling of burning. Of course, I do NOT lie in full sun for all the hours it is shining. For more information about the lamps, go to https://solarcsystems.ca/en/?v=3e8d115eb4b3.
CalgaryMark
Growing old is mandatory, Growing up is optional. Laughing at yourself is therapeutic.
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Country: Canada
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Bill Bowser
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calgarymark
Forum Member
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Posted - 06/30/2017 : 7:14:23 PM
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Yet another reason to only swim in the sea or a lake; and if you have to swim in a pool, clothed or not, have a shower before getting in the pool to wash off the sunscreen, and sweat, and... 
CalgaryMark
Growing old is mandatory, Growing up is optional. Laughing at yourself is therapeutic.
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Country: Canada
| Posts: 184 |
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jbsnc
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Posted - 07/01/2017 : 11:13:27 AM
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Not undermining use of sunscreen. I habituated activities mostly in the shade from mid morning till late afternoon except while swimming. Only early and late sun exposure with some exceptions. I am moderately fair (mostly Scottish). Often wore a wide brimmed hat while hiking. Fortunately the nudist resort I most visited had substantial forest hiking trails with much shade.
Happy Nuding.
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Country: USA
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NaturistDoc
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Posted - 07/09/2017 : 01:14:36 AM
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Science marches on. The way we tan is complicated. UV damage to DNA in the dermis triggers melanocytes to produce melanin and box it up in little packages called melanosomes. The melanosomes are then spit out and taken up by keratinocytes, the outer layer of live skin cells. The keratinocytes manage to arrange the melanosomes into structures called supranuclear caps or, adorably, microparasols that shade the cell nucleus and its DNA from solar UV. These scientists in San Diego have concocted a sort of artificial melanosome that human keratinocytes seem to treat as the real thing. Who knows if it will ever amount to a practical sunscreen, but trying to mimic nature's own sunscreen makes sense to me.
http://pubs.acs.org/doi/pdf/10.1021/acscentsci.6b00230
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Country: USA
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NaturistDoc
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Posted - 05/26/2018 : 12:09:46 PM
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THIS IS INFURIATING!
The more things change, the more they stay the same. It has been almost 12 years since I started this thread, and in the meantime virtually nothing new has made it through the bureaucratic pipeline of the FDA and onto the sunscreen market. Effective UVA blockers that are used around the world are essentially unavailable in the US. Unsurprisingly, skin cancer rates are increasing, And recently, the sale of sunscreens containing oxybenzone - which means most of them - has been banned in the State of Hawaii.
www.bloomberg.com/news/articles/2018-05-25/america-is-losing-race-to-develop-the-sunscreens-of-the-future
Of the sunscreens that are available in the US, roughly half of them wouldn't meet the EU's standards for UVA protection.
www.jaad.org/article/S0190-9622(17)30035-X/abstract
We deserve better sunscreens! An email or letter to your Senator and/or Congressman will help bring them to our shores.
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Country: USA
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Bill Bowser
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Posted - 05/26/2018 : 6:54:37 PM
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There is no doubt that better sunscreens are needed, and apparently there are more effective sunscreens available in other parts of the world that have not been approved for use in the USA, but I think there may be a good reason for this.
Sunscreens are intended to be absorbed by the skin. The complex chemicals in sunscreens are absorbed into ones body. The effects these chemicals have on the users must be very carefully studied, especially because sunscreens are slathered on infants and young children by modern mothers. Who knows how these modern sunscreens may effect someone many years down the road? It is almost impossible to assure 100% safety of applying chemicals which are absorbed into the body, but it is 100% certain that UV exposure is hazardous to your skin. How do you balance the risks and rewards? I am usually very critical of almost everything the government gets involved with, but maybe not this time.
Bill Bowser - Cincinnati
Not lewd, not crude, just nude.
Nudists are everywhere, but they're hard to identify with their clothes on.
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Country: USA
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Bill Bowser
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NaturistDoc
Forum Member
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Posted - 06/03/2018 : 3:38:05 PM
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My opinions of the FDA and of the Environmental Working Group (mentioned in the Fox News article) can be found elsewhere in this thread. I agree that a certain caution is a good thing, but come on now. The FDA has been "studying" sunscreens since the mid-00's and has done practically nothing, while the rest of the world has moved on, studying and approving sunscreens with a reasonable concern for their safety and efficacy. While there have been some lab studies using animals of cell cultures that show some potentially alarming effects of some chemical sunscreens, there is virtually no good evidence that are harmful to humans in real-life conditions.
The Fox News article has some interesting points. The first product Dr. Bowe mentions is Anthelios from Roche-Pousay, one of the very, VERY few products allowed onto the US market that contain Mexoryl, a widely used broad-spectrum sunscreen I've been ranting about for years. (I illegally import Mexoryl sunscreens from Canada. Thanks, steady78!) The article also cites Consumer Reports' - a far more reliable organization than those twits at EWB - evaluations of currently available sunscreens. CR takes a rather dim view (heh, heh) of many sunscreens, but they tend to favor chemical sunscreens over "mineral" or "barrier" sunscreens for one simple reason: they work better. They state bluntly, "In our tests over the years, so-called natural or mineral sunscreens—those that contain only titanium dioxide, zinc oxide, or both as active ingredients—have tended to perform less well than those that have chemical active ingredients, such as avobenzone. None of the mineral sunscreens in our tests this year did well enough to make our list of recommendations."
Ironically, President Trump has just signed the so-called "Right-To-Try" bill, which will allow, for instance, a desperately ill melanoma patient to bypass the FDA and obtain (at his/her own risk and expense) **completely unproven** experimental medications outside of existing research protocols. (Fun fact: 19 out of 20 cancer drugs that make it past the very preliminary Phase I human trials never make it to market because they turn out to be ineffective and/or unacceptably toxic.) Yet at the same time, we are NOT allowed to obtain sunscreens deemed safe and effective in Europe, Australia, Canada, etc., and which might have prevented the melanoma in the first place! I guess cancer patients have a stronger lobby than do sunbathers ... or nudists.
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Country: USA
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NaturistDoc
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free2be
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Posted - 07/09/2018 : 9:10:57 PM
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I don’t know if I want a butt face. 
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Country: USA
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NaturistDoc
Forum Member
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Posted - 07/20/2018 : 2:06:44 PM
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Here are Wirecutter's rather sensible recommendations for sunscreens available in the US.
thewirecutter.com/reviews/best-sunscreen/
Hawaii has banned the sale of sunscreens containing octinoxate or oxybenzone, and some companies are already touting "reef-safe" sunscreens. I'm not a big fan of barrier-type sunscreens - they're messy and relatively ineffective - but Wirecutter recommends a zinc oxide based product that doesn't sound too awful.
thewirecutter.com/reviews/best-reef-safe-sunscreen/
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Country: USA
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NaturistDoc
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Bill Bowser
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Posted - 01/07/2019 : 10:46:39 PM
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Ah dietary supplements, an industry that desperately needs to be regulated. Despite the fact that I’m usually not in favor of government regulation, the gullibility of the American people makes regulation of this industry essential. Manufacturers are permitted to make unproven claims about the benefits of their snake oil and many people believe it, and waste lots of money on nonsense.
It’s a great system that we have. Sunscreens with proven benefits can’t get approved while magic potions to make your penis grow larger are readily available. The inmates have taken control of the asylum.
Bill Bowser - Cincinnati
Not lewd, not crude, just nude.
Nudists are everywhere, but they're hard to identify with their clothes on.
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Country: USA
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Sunscreens 101 (USA)
Posted - 06/30/2017 : 1:09:28 PM
