I've read that zinc oxide and titanium dioxide are the most effective against UVA/UVB Rays.
What you've read is probably true. Both of these minerals are sunblocks
- they form a barrier between both of these rays and the skin. In other words, these minerals when applied correctly keep the rays of the sun from penetrating into the skin. Sunscreens
- give you chemical protection and are mostly effective in absorbing and deflecting the UVB rays. Some of the ingredients of chemical sunscreens can enter into the bloodstream and cause problems, although this is rare.
Yet, very recently, reports say that these chemicals [the minerals in sunblocks] can now cause melanoma because the sun's rays cause a chemical reaction which creates free radicals.
Many people do not like sunblocks because they are not transparent - the zinc oxide and titanium dioxide just rest on the surface of the skin not looking too glamorous. So sunblock providers have used the new nanoparticle technology to create what people will be more happy with. Now it's possible to greatly miniaturize the minerals so they they will be absorbed into the skin. This makes the skin more attractive but there is a drawback. Some research has found that the absorption of zinc oxide and titanium dioxide nanoparticles can cause oxidative stress and even DNA damage - cancer. When you're looking for a sunblock product it might be hard to determine if you are getting what you really want. The labels usually do not disclose if the active ingredient is nanoparticles or not. You have to be a good detective.
Of course all sunscreens and sunblocks prevent the skin from making vitamin D. It might be a good idea to take a supplement if your vitamin D level is low. I take 2000 IU of D3 every day. It's an important nutrient. Maybe it will improve your soccer game.