There are actually a lot of chemicals that we want to avoid in sunscreens. I want to run through some of the most important ones, so get ready for what might be a bit of a surprise:
Vitamin A
This is a big surprise for some. It turns out that when vitamin A is on your skin and interacting with light. It ultimately becomes harmful to your skin.
Oxybenzone
This is a big one to avoid. Both it and octinoxate are clear endocrine disruptors. They are both things which mess with our hormones. Which means that they can cause worse hormonal symptoms, more thyroid problems, or raise the risk for more hormonal cancers (breast or prostate).
Titanium Dioxide
The data has shown that titanium dioxide can cause DNA damage2.
Nanoparticles of Zinc Oxide
These actually cause free radical damage on the skin, but we will get back to zinc oxide later on in this article.
Other Ingredients To Avoid
We also want to avoid both parabens and BHA in our sunscreen.