Some studies show that people who wear sunscreen are more likely to develop skin cancer than those who don't. The reasons aren't certain....it could be that SPF simply doesn't help much, but people stay in the sun longer thinking it does; or even scarier, chemicals in some sunscreens may actually interact with the sun in a way that does more damage than sun alone. A new report from EWG reports that a a form of vitmin A found in 41% sunscreens, may be transformed into a potent carcinogen by the sun's rays. they also know that in the presence of sunlight, vitamin A can form free radicals that damage DNA.....The EWG released its 2010 sunscreen report card. Of 1400 SPF products, only 39 get their highest safety and effectiveness rating. Check out the report online at www.ewg.org/2010sunscreen
The key is to find mineral sunscreens that use titanium dioxide and/or zinc oxide as their main ingredients, and don't contain oxybenzone, retinyl palmitate (retinol) or artificial fragrance.
....In my case I try to wear a hat whenever possible, outside of the house of course although sometimes I do forget and end up wearing it inside too. I sunscreen I use is called Solar Body Block spf 30 from Devita, it's paraben free and 100% vegan, meaning it was not tested on any of our animal buds!! Bummer is I checked the ingredients and many are good including zinc, aloe vera gel, green tea, coconut oil etc...but somewhere down the list it reads "retinol"....better luck next time!