Repelling Bugs With The Essence Of Grapefruit

Scientists are working on a new, natural bug repellent. It's non toxic, non-greasy and smells like grapefruit. For insects it's deadly but for humans it's safe enough to drink.

Source: http://www.npr.org/2011/04/18/135468567/repelling-bugs-with-the-essence-of-grapefruit?ft=1&f=1007

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