The majority of sunscreens have these and other micronized chemicals that are readily absorbed into our blood stream via the skin. Look for sunblocks that contain titanium or zinc oxide. These are larger molecules that are unable to cross through the skin into our blood stream. When applied, these will leave a light white film on your skin. That is what is blocking the UV rays.
Many of the pain relieving gels out on the market also have parabens in them. Our office no longer stocks pain relieving gels that have unwanted chemicals in them. We have found pain relieving gels, lotions and sun blocks that are paraben free. For more information, do internets search on parabens.