What are eye crusties made of? (video)


Credit: The American Chemical Society

WASHINGTON, Sept. 13, 2018 — The substance that builds up in the corners of your eyes as you sleep has a variety of colloquial names: eye crusties, sleep, eye dust. But why does it appear every morning? And what is it actually made of? In this video, Reactions explains the chemistry of eye crusties: https://youtu.be/w3M8p-QCC7I.

Reactions is a video series produced by the American Chemical Society and PBS Digital Studios. Subscribe to Reactions at http://bit.ly/ACSReactions, and follow us on Twitter @ACSreactions.


The American Chemical Society, the world's largest scientific society, is a not-for-profit organization chartered by the U.S. Congress. ACS is a global leader in providing access to chemistry-related information and research through its multiple databases, peer-reviewed journals and scientific conferences. ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies. Its main offices are in Washington, D.C., and Columbus, Ohio.

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