Home  - Contact  - Syndication  - Login  

Study: Many Sunscreens May Be Accelerating Cancer

 
National Cancer Institute
Graph of melanoma of the skin rates from 1975 to 2006. APC stands for annual percent change and AAPC stands for average annual percent change.
But in the U.S., there is currently no sunscreen that meets all of these criteria. European countries have more chemical combinations to offer, but in the U.S. the major choice is between the "chemical" sunscreens, which have inferior stability, penetrate the skin and may disrupt the body's hormone systems, and "mineral" sunscreens zinc and titanium dioxide.

Increasingly, as AOL News reported in March, the industry is using titanium dioxide that is made nanosized, which a growing number of researchers believe have serious health implications.

The sunscreen industry cringes when EWG releases its yearly report -- this is its fourth. The industry charges that the advocacy group wants to do away with all sunscreen products, a claim that is not accurate.

The report's researchers clearly say that an effective sunscreen prevents more damage than it causes, but it wants consumers to have accurate information on the limitations of what they buy and on the potentially harmful chemicals in some of those products.

EWG does warn consumers not to depend on any sunscreen for primary protection from the sun's harmful ultraviolet rays. Hats, clothing and shade are still the most reliable sun protection available, they say.

Don't count on the numbers

Some of us are old enough to remember when the idea of having a tan was good, a sign of health, when billboards and magazine ads featured the Coppertone girl showing off her tan when a puppy pulls down her bathing suit bottom.

Going for that tan, we coated our kids and ourselves with sun blockers with sun protection factors of 1 or 2. Some overly cautious parents might have smeared on a 4 during the hottest part of a day.

But we've learned of the dangers that come from exposure to the sun's rays, especially ultraviolet A and B. So today, drugstore shelves are crammed with sunscreens boasting SPFs of 30, 45, 80 or even higher.

However, the new report says those numbers are often meaningless and dangerous because products with high SPF ratings sell a false sense of security, encouraging people using them to stay out in the sun longer.

"People don't get the high SPF they pay for," the report says. "People apply about a quarter of the recommended amount. So in everyday practice, a product labeled SPF 100 really performs like SPF 3.2, an SPF 30 rating equates to a 2.3 and an SPF 15 translates to 2."

In 2007, the report says, the FDA published proposed regulations that would prohibit manufacturers from labeling sunscreens with an SPF higher than "SPF 50." The agency wrote that higher values would be "inherently misleading," given that "there is no assurance that the specific values themselves are in fact truthful."

This is being widely ignored by the sunscreen makers who are heavily advertising their 80, 90 and 100 SPF products.

"Flouting FDA's proposed regulation," companies substantially increased their high-SPF offerings in 2010 with one in six brands now listing SPF values higher than 50. "Neutrogena and Banana Boat stand out among the offenders, with six and four products labeled as 'SPF 100,' respectively," the new report says.

The full list of the best and worst sunscreens can be found on the EWG's searchable database. (Update: The database has been loading slowly today. You may want to try it again later.)
Filed under: Nation, Health, Top Stories

Print | posted on Wednesday, June 02, 2010 10:10 AM

Feedback

No comments posted yet.
Title  
Name
Email (never displayed)
Url
Comments   
Please add 7 and 1 and type the answer here: