A new study reveals that small particles of zinc oxide, which are commonly found in sunscreens, can be toxic to the colon if accidentally eaten, according to a study in ACS’ Chemical Research in Toxicology Journal.
Zinc oxide particles in sunscreen that are smaller than 100 nanometers are more toxic because they are more soluble. If ingested, the direct particle contact could cause death.
Study: Some Sunscreens May Be Toxic When Eaten - Beauty & Skin - FOXNews.com