Check out this Daily Mail headline.

Swimming can turn your sunscreen toxic! Compound used in the protective lotions becomes deadly when it reacts with chlorine and the sun, increasing risk of cancer

  • Avobenzone is widely considered to be the most popular sunscreen in the world
  • The compound works by making UV rays safer so that they don't damage the skin
  • But scientists say it becomes poisonous when exposed to both sun and chlorine

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