> made five mixtures containing the UV filters—the active ingredients in sunscreens—from different products available in the United States and Europe. They also

> made five mixtures containing the UV filters—the active ingredients in sunscreens—from different products available in the United States and Europe. They also made additional mixtures with the same ingredients, plus zinc oxide at the lower end of the commercially recommended amount. This sounds like they made mixtures of the usual chemical sunscreens that people already have concerns about, then added zinc to the mixture and found it caused the chemical sunscreens to degrade more. That’s an important finding but what about the pure mineral sunblocks that don’t have any of the chemical sunscreens.