Showing posts with label sunscreen. Show all posts
Showing posts with label sunscreen. Show all posts

Monday, May 23, 2011

Sunscreen Safety at Issue

Just as the Northern Hemisphere is getting close to the sunnier summer season these consideration about using sunscreen may be important to consider -
It's that time of year when sunscreen advertisements become ubiquitous on television—cute kids prancing on the beach after their mothers conscientiously apply multiple coats of white lotion in an effort, the companies tell you, to protect against sunburns and skin cancer. Sunscreen has become big business. In 1972, sunscreens and sunblocks raked in $18 million. Last year, a single Banana Boat brand product brought in that amount, and the top 10 sunscreen products on the market netted more than $300 million in sales. Yet, as sales of sunscreen have grown, so has theincidence of melanoma, the most fatal form of skin cancer. Among white Americans, for example, incidence rates for melanoma have increased from approximately 8.7 per 100,000 people in 1975 to 25.3 per 100,000 in 2007, according to the U.S. Preventive Services Task Force (USPSTF). Those numbers raise the question, if we're using more and more sunscreen, why haven't those cancer rates gone down?  SOURCE
Selections from our many Sunscreen posts at Natural Health News

May 15, 2011
In 2008 Natural Health News reported on sunscreen as unsafe and ineffective. Earlier than this, along with an expert on the subject, we tackled mis-information being promoted by Dr Oz's "Real Age". Over the years we have continued to ...

May 19, 2008
Today the BIG NEWS is about Sunscreen. Numerous problems remain even after many years of known issues with the chemical ingredients in these products. Some products listed as safe in the EWG report contain titanium dioxide, ...
Aug 16, 2010
But cloud cover, sunscreen, skin pigmentation and even northern latitudes can reduce the penetration of ultraviolet-B rays. And with sedentary lifestyles and concerns about skin cancer, many people never get enough sun to provide ...
Apr 22, 2010
Pomegranate Enhances sunscreen protection Lowers "bad" cholesterol Fights prostate cancer. Pumpkin Protects joints against polyarthritis Lowers lung and prostate cancer risk Reduces inflammation. Raspberries Inhibit growth of oral, ...

Sunday, May 15, 2011

Sunscreen Allergies

In 2008 Natural Health News reported on sunscreen as unsafe and ineffective. Earlier than this, along with an expert on the subject, we tackled mis-information being promoted by Dr Oz's "Real Age".  Over the years we have continued to cover this story and the associated problems caused by lack of exposure to the sun, sans sunscreen.

Now a new issue seems to be having an impact on you as you use these products.

There are options, and those natural approaches are covered in related stories here at Natural Health News.

Are You Allergic to Sunscreen?

By Krisha McCoy, MS, Medically reviewed by Christine Wilmsen Craig, MD



As the weather heats up and you spend more time outdoors, it’s essential to slap on sunscreen – and it could even save your life. A recent study from Australia – which has some of the hightest rates of skin cancer in the world – found that applying sunscreen daily reduced the risk of melanoma, the most deadly kind of skin cancer, by an amazing 50 percent.

But for some people, applying certain types of sunscreen can actually cause a skin allergy. Sunscreen allergies are fairly uncommon, however, so how can you be sure that your skin irritation is due to sunscreen and not something else?

Detecting a Sunscreen Allergy

Sunscreens work because they contain chemicals that absorb harmful ultraviolet radiation, and keep them from penetrating your skin. Some of these chemicals, including oxybenzone, 4-isopropyl-dibenzoylmethane, PABA (para-aminobenzoic acid), esters, avobenzone, and cinnamates, have been known to cause an allergic reaction in certain people.

According to Anna Feldweg, MD, a clinical instructor of medicine at Harvard Medical School and an attending physician in allergy and immunology at Brigham and Women's Hospital in Boston, there are two ways a sunscreen allergy generally appears: as a contact allergy or contact photoallergy.

With contact allergies, Dr. Feldweg explains, "you get a rash where the product is applied." But, in contact photoallergy, the reaction is due to an interaction between sunscreen chemicals and sunlight, "so you get the rash where the sunscreen was applied but only once the skin has been exposed to the sun," she notes. These two conditions may be hard to tell apart, although the difference is important in determining how to test for a sunscreen allergy.

A sunscreen allergy may appear when you first start using sunscreen, or it can develop after years of sunscreen use. You might experience an allergic reaction immediately, or up to several days after you apply the sunscreen. Some signs include:

  • Red skin
  • Swelling
  • Itching
  • Blisters that are filled with fluid

These symptoms will appear in the areas where you applied the sunscreen to your body, and, in the case of a photoallergy, where your skin was also exposed to sunlight.

Dealing With a Sunscreen Allergy

If you suspect a sunscreen allergy, you should see a dermatologist or an allergist, who can diagnose and treat your condition. Your doctor can perform a patch test to confirm whether you are allergic to specific chemicals that are present in sunscreen. For a contact allergy, the patch test probably will be done without ultraviolet light first; a photoallergy patch test will be performed in combination with exposure to ultraviolet light. Patch testing can help your doctor diagnose exactly which chemicals you are allergic to, so you can avoid those chemicals.

For people with a sunscreen allergy, there are alternatives to traditional sunscreen to protect your skin from the sun. Sun protection is an important part of protecting the health of your skin, so if you are allergic to a chemical in sunscreen, your doctor can help you find a sunscreen that doesn't contain that chemical. Sunscreens known as physical sunscreens contain powdered versions of zinc oxide or titanium dioxide, which reflect light, keeping it from penetrating your skin. Physical sunscreens are not known to cause allergic reactions.

An allergy to sunscreens does not have to keep you from having fun in the sun. Talk with your doctor to find out which sunscreens can work for you.

Source, Last Updated: 05/04/2011

From Natural Health News
Oct 13, 2008
Air pollution, sunscreen and clothing all limit the amount of vitamin D the body can synthesize from sunlight. The group suggests non-breast-fed infants and older children who are drinking less than one quart (liter) of vitamin ...
Jul 05, 2008
Only 16% of sunscreens on the market are both safe and effective, according to a new analysis by the Environmental Working Group, an advocacy and research organization. Of 783 products analyzed, only 125 blocked both UVA and UVB
Nov 16, 2010
Yet thanks to sunscreen and workaholic (or TV-aholic) habits, most people don't make enough. How much do you need? The Institute of Medicine is reassessing that right now; most experts expect a big boost from the current levels (200 to ...
Sep 12, 2010
It's affecting middle-class children because they're overprotecting with sunscreen and not going out as much. SPF is also increasingly in cosmetics used by young women. “The more dramatic cases tend to be in people who wear traditional ...
Oct 01, 2010
Pomegranate Enhances sunscreen protection Lowers "bad" cholesterol Fights prostate cancer. Pumpkin Protects joints against polyarthritis Lowers lung and prostate cancer risk Reduces inflammation. Raspberries Inhibit growth of oral, . ...
Jan 31, 2009
While in the sun, it's important to cover the face but okay to expose the arms and legs for 10 minutes or so without sunscreen, he adds. "If you're going to be out in the sun for five, ten or 15 minutes, don't be paranoid." ...
May 19, 2008
Today the BIG NEWS is about Sunscreen. Numerous problems remain even after many years of known issues with the chemical ingredients in these products. Some products listed as safe in the EWG report contain titanium dioxide, ...
Aug 16, 2010
But cloud cover, sunscreen, skin pigmentation and even northern latitudes can reduce the penetration of ultraviolet-B rays. And with sedentary lifestyles and concerns about skin cancer, many people never get enough sun to provide ...
Apr 22, 2010
Pomegranate Enhances sunscreen protection Lowers "bad" cholesterol Fights prostate cancer. Pumpkin Protects joints against polyarthritis Lowers lung and prostate cancer risk Reduces inflammation. Raspberries Inhibit growth of oral, ...
Dec 17, 2010
The experts now say it is fine to go outside in strong sun in the middle of the day, as long as you cover up or apply sunscreen before your skin goes red. 'Too negative'. A good diet and sensible sun exposure will be adequate for most 
Natural Health News: Frequently Copied, Never Duplicated! 

GILSUM, N.H.–Just as many consumers are venturing outside for some summertime fun, Katie Schwerin, co-founder of the W.S. Badger Co., offered several tips to choosing a safe sunscreen in a recent statement.
“The best protection from the sun is to stay out of it or cover up with a good hat and long sleeve shirt," she said. “But for the sun lovers among us, using a mineral sunscreen with zinc, not chemicals, is the safest and most effective way to go because these minerals stay on the surface of the skin and are not absorbed, releasing free radicals into your body."
Schwerin continued, “Sunscreen users should be careful not to have a false sense of security and overdo, over expose or under protect themselves."
She also said it’s important to make sure it’s really natural by checking to see if it has the Natural Products Association's (NPA’s) Certified Natural seal or an NSF/ANSI 305 designation that certifies organic ingredient content.
Next, she suggested consumers make sure the sunscreen includes organic plant oils, butters and waxes, which provide a safe moisturizing base to help protect skin from water, wind, sand and sun while keeping it hydrated.
Other hidden dangers from conventional sunscreen are their impact on the environment and our natural surroundings, she said. If your sunscreen isn't biodegradable, its chemicals can wash off the body and leech into lakes, oceans and rivers causing potential damage and harm. “They can even damage delicate coral reefs and marine life," added Schwerin.
W.S. Badger makes a full line of safe, effective, natural, mineral-based, certified organic sunscreens. The Badger sunscreen line includes SPF30+ Lightly Scented, SPF30+ Unscented, SPF30+ Baby Sunscreen, SPF30+ Sunscreen and Anti-Bug Repellent, SPF30+ All-Season Face Stick, SPF15 Lightly Scented, and SPF15 Unscented Lip Balm Stick. The full line uses uncoated, non-nano zinc oxide for broad-spectrum protection in a base of certified organic ingredients. W.S. Badger sunscreens are recommended and score a number one for safety and effectiveness by the Environmental Working Group as sunburn protection.

Sunday, June 6, 2010

SUN Safety

Triple digit weather has hit the SW and heat advisories are issued for the next several days.  As summer in the northern hemisphere arrives in a few weeks, this can be helpful information for everyone, including your animal companions.

New article - SUN SENSE


more information and article links here


Sun Safety

Hot Weather Tip

Sun Screen Too many ineffective

More sun screen information

Monday, May 24, 2010

Suncreen May be Hiding the Facts

Today the BIG NEWS is about Sunscreen.  Numerous problems remain even after many years of known issues with the chemical ingredients in these products.  Some products listed as safe in the EWG report contain titanium dioxide, which if you note is mentioned in my 2008 posts that follow.  This raises concerns!.

The sad part is that this information has taken so long to get to the public!

Originally posted May 2008


It is very important to take the time to read labels when purchasing sun screen.

You might also want to increase use of vitamin B1 and make a vitamin C solution for a spray bottle. Both help act as sunscreens.

We also suggest using our anti-oxidant organic lotion following sun exposure to prevent dryness and maintain lubricity of your skin.

The following information from another colleague has some valuable tips. We exchanged information a year or so ago and it helped him update his recommendations.

Should you get sunburn, a good way to tame the sting is a tea bath or applying plain tea to those hot, red areas. Many people like to use pure aloe vera.

and another post from July 2008 84% of Sunscreens Unsafe or Ineffective
Sunscreens Revisited -
Sunny weather is here again and with it comes concerns about sun exposure and sunburn. The sun is beneficial for its ability to induce vitamin D production in our bodies. For those people who take cod liver oil in the winter for its vitamin D value, it may be prudent to switch during the sunny summer months to fish oil or krill oil as an omega 3 supplement, which do not contain vitamin D. It may be possible to build up too high a level of vitamin D in the bloodstream. Be aware, however, that research has failed to show any toxicity from vitamin D3 supplementation in adults at dosages as high as 4,000 to 10,000 IU. The synthetic Vitamin D2 (ergocalciferol) has shown toxic potential. We cannot get too much vitamin D from sun exposure.

Sunscreens are necessary for days with hours of time spent in the sun, especially kids playing baseball, or playing at the park, or swimming. As for sunscreens, I am very concerned about the use of ingredients in most commercial brands. Many of these chemical sunscreens have carcinogenic and/or hormone disrupting effects. These include cinnamates, PABA, oxybenzone, salicylates, benzophenones, and triethenolamine, among others. These ingredients are absorbed through the skin, and can be found in plasma and urine samples after their use in humans. I don't consider them safe for anyone, especially children.

Titanium dioxide (TiO2) is contained in many "natural" sunscreens, but this metal has also been implicated as a potential problem in humans. Titanium dioxide has the ability to cause DNA damage in human cells. Although the Environmental Protection Agency has not identified any carcinogenic effects of TiO2, its ability to alter DNA strands is a cause for concern.

Zinc oxide is the only completely safe sunblocking agent. In addition zinc oxide also has anti-inflammatory effects that can help to mitigate damage caused by UV radiation. Zinc oxide blocks both UVA and UVB radiation. Excellent sunscreen products that contain only zinc oxide as the active ingredient are made by UVNaturalUSA.com. Their Sport 30 is the most water repellent of their products. These sunscreens use a transparent zinc oxide that does not create a white mask on the skin. They can be ordered through many online sources and health food stores. These sunscreens are safe for most infants as well. A thin layer works well. If swimming, reapply every 2 hours.

Enjoy the sunny weather. Avoid getting sunburned and be prudent about sun exposure at midday. Wear a hat. Protect your eyes with UV sunglasses. Use a zinc oxide sunscreen. And have fun.

Titanium Dioxide Studies -

Chemical oxidation and DNA damage catalyzed by inorganic sunscreen ingredients.
Dunford R, Salinaro A, Cai L, Serpone N, Horikoshi S, Hidaka H, Knowland J
University of Oxford, Department of Biochemistry, UK.
This is now a known carcinogen titanium dioxide (TiO2) has been noted (US Federal Register, 43FR38206, 25 August 1978) to be an unsafe physical sunscreen because it
reflects and scatters UVB and UVA in sunlight.
However, TiO2 absorbs about 70% of incident UV, and in aqueous environments this leads to the generation of hydroxyl radicals which can initiate oxidations. Using chemical methods, we show that all sunscreen TiO2 samples tested catalyze the photo-oxidation of a representative organic substrate (phenol). We also show that
sunlight-illuminated TiO2 catalyses DNA damage both in vitro and in human cells. These results may be relevant to the overall effects of sunscreens.
PMID: 9414101, UI: 98074912 45: Toxicol Lett 1995 Oct;80(1-3):61-7
*****
Deleterious effects of sunscreen titanium dioxide nanoparticles on DNA: efforts to limit DNA damage by particle surface modification
Serpone, Nick; Salinaro, Angela; Emeline, A.
Proc. SPIE Vol. 4258, p. 86-98, Nanoparticles and Nanostructured Surfaces: Novel Reporters with Biological Applications, Catherine J. Murphy; Ed.
(c) 2001 SPIE--The International Society for Optical Engineering.
Abstract - Sunlight can have deleterious effects on humans: causes sunburns and is the principal cause of skin cancers. Usage of TiO2 (and ZnO) in sunscreen lotions, widely used as UVA/UVB blockers, and intended to prevent sunburns and to protect consumers from skin cancers (carcinomas and melanomas) is examined. Although used to mineralize many undesired organic pollutants, TiO2 is considered to be a safe physical sunscreen agent because it reflects and scatters both UVB (290-320 nm) and UVA (320-400 nm) sunlight; however, it also absorbs substantial UV radiation which, in aqueous media, yields hydroxyl radial ((DOT)OH) species. These species cause substantial damage to DNA (J. Photochem.Photobio.A:Chem.,111(1997)205). Most importantly, sunlight-illuminated sunscreen TiO2 particles catalyze DNA damage both in vitro and in human cells (FEBS Letters, 418 (1997)87). These results raise concerns on the overall effects of sunscreens and raise the question on the suitability of photoactive TiO2 as a sunscreen component without further studies. The photocatalytically active nature of these metal oxides necessitates some changes since even the TiO2 specimens currently used in suncreams cause significant DNA strand breaks.

Chemical oxidation and DNA damage catalysed by inorganic sunscreen ingredients
FEBS Letters, Vol 418, 24 November 1997, pages 87-90
Copyright © 1997 Federation of European Biochemical Societies. Published by Elsevier Science B.V.
Rosemary Dunford, Angela Salinaro, et al.
University of Oxford, Department of Biochemistry, South Parks Road, Oxford OX1 3QU, UK Department of Chemistry and Biochemistry, Concordia University, Montreal, Que. H3G 1M8, Canada Department of Chemistry, Meisei University, Hino-shi, Tokyo 191, Japan

Abstract - Titanium dioxide (TiO2) has been noted (US Federal Register, 43FR38206, 25 August 1978) to be a safe physical sunscreen because it reflects and scatters UVB and UVA in sunlight. However, TiO2 absorbs about 70% of incident UV, and in aqueous environments this leads to the generation of hydroxyl radicals which can initiate oxidations. Using chemical methods, we show that all sunscreen TiO2 samples tested catalyse the photo-oxidation of a representative organic substrate (phenol). We also show that sunlight-illuminated TiO2 catalyses DNA damage both in vitro and in human cells. These results may be relevant to the overall effects of sunscreens.
Today, 24 May 2010 - from EWG.org
http://www.ewg.org/2010sunscreens/press
http://www.ewg.org/Sunscreen_or_smoke_screen%3F

 
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