Shellac...

Wow - I wish I read this before Easter!  You might not eat another jelly bean after reading this!

Watch out candy lovers, cover your eyes: pretty, shiny treats like jelly beans come at a price. They're often coated with shellac, a sticky substance derived from secretions of the female Kerria lacca, an insect native to Thailand. 

Where you’ll find it: Shellac makes jelly beans, candy corn, and other hard-coated candy look shiny. It may be called a “confectioner’s glaze” on the packaging. So sweet, and yet so sick and kind of gross!