Originally Posted by peachy /img/forum/go_quote.gif Hey guys, I know there are a million sunscreen threads, but I looked through them and my question was a bit more specialized, so I was hoping some of you could help.
I've heard from a few places that chemical sunblocks generate free radicals and make sun damage MORE likely. I don't know how true this is, but it makes me want to start looking for a more natural sunscreen. Problem is all the natural ones seem to be formulated for dry skin...with things like shea butter and heavy oils that would make my face an oil slick >.<
Any recommendations?
Peachy's suggestion of the Neutrogena block sounds like a decent one. Titanium Dioxide is not as comprehensive a block as Zinc Oxide, but it is fine. If you can find a combination of the two, that would be best. I do not know why you are having a hard time finding a physical block formulated for oily or normal skin. You have to remember that TO2 and ZO2 ARE natural - they are organic compounds! Everything is chemical regardless. If you are getting an organic product with shea butter and such, it does not necessarily make it safer than one that uses more cosmetically appealing ingredients. Some of the "organic" sunblocks are considered the most dangerous by environmental agencies that test products. Many of them are plain ineffective at protecting against sundamage - so what is more dangerous?
The whole chemical sunscreen generating free radicals debate is iffy. None of the studies I have read have been convincing enough to lead me to change to pure physical blockers. Sunscreens work by absorbing rays rather than blocking them. They release the radiation into the atmosphere after filtering them. They also degrade through this process - through direst sun exposure. Most sunscreen cannot penetrate the levels of the dermis deep enough to cause any real damage to the skin or body. Even for the ones that can, the evidence to support it is not extremely convincing. There are many scary things you can read about and for every scary thing, something that counters it. You have to do your own research and decide for yourself. Sunscreens are a combination of superior UVA filters AND physical blockers and offer superior UVA protection. If you are looking for a "natural sunscreen," you won't find one. You are looking for a sunblock I believe. You need to know the process of how these chemicals and minerals work, and then you can choose the product right for you according to what studies you believe and disbelieve.