Some of the ingredients you might find in a bottle of sunscreen are:
- Zinc oxide
- Titanium dioxide
- Avobenzone
- Oxybenzone
- Mexoryl SX (ecamsule)
- Retinyl Palmitate or Retinol
The purpose of sunscreen is to absorb or scatter UV radiation. Both types of UV (A and B) should be avoided. Older sunscreens don’t offer that. That is why we should look for labels with broad spectrum, wide spectrum, or UVA/UVB spectrum. Ingredients such as zinc oxide, titanium dioxide, avobenzone, mexoryl SX (ecamsule) and oxybenzone offer broad-spectrum protection. But according to the Environmental Working Group or EWG, oxybenzone is a “hormone- disrupting” compound as shown in a study of mice, and should therefore be avoided. The group recommends zinc oxide and titanium dioxide as safe and effective UV blockers. Ecamsule is also safe but very few sunscreens has this forumulation, while avobenzone should be limited to only 3%.