SUNSCREEN in UV

One thing I think I didn't hear in the video is that having both a good ingredient for UVA and UVB protection is important and that is why many sunscreens use multiple ingredients. UVA will damage skin in the deeper layers and UVB will burn it nearer the surface and increase cancer risk due to DNA damage. The separate effects are due to the wavelengths in UV. I use Titanium Dioxide and Zinc Oxide sunscreen because the other stuff tends to be thinner and always gets in my eyes and clogs my pores. The Titanium Dioxide is what will reflect the UVB rays and the shorter UVA rays, where the Zinc Oxide reflects the longer  UVA wavelengths better. I did my research and use sunscreen quite often. Unfortunately it is hard to get out of my leather interior and I have resigned myself to the fact that the white smears will never come out completely. The "physical" sunscreen is usually referred to as "Mineral" sunscreen now since you are correct about the misleading terms. There are claims that the chemicals in many sunscreens are dangerous because they disrupt hormones once they enter into the bloodstream. It looks like it might be another Dr.Oz rumor that started the whole thing, but sites like Medium.com explains that it would take 200 years of exposure to cause these issues.