A lawsuit accuses the parent company that makes Skittles of continuing to use a chemical toxin in the popular candy. A woman in Oakland, California claims in the lawsuit that in April, she opened a Skittles package that still contained titanium dioxide. Skittles-maker Mars Incorporated pledged in 2016 to stop using titanium dioxide and artificial colorings in its products for the next 5-years. The chemical is found in paints, sunscreens, plastics, and cosmetics and has long been used in candies, chewing gum, chocolates, and coffee creamers.