Eliminating seed oils & sugar really does seem to make a difference in the way my skin responds to the sun. I think a lot of today's health issues are the result of many compounding missteps.
IMO it's best to start by eliminating drugs, fixing foods, fixing cookware, & then the other little things we do every day (toothpaste, soaps, moisturizers, etc) & work out from there. Many of the scents & things people use are hormone disruptors. For people who don't pay attention to these things it's death by 1000 cuts.