10 Mind-Blowing Listerine Hacks You Never Knew Existed

6. Remove Lice

Listerine has also been known to be an effective treatment for lice. The alcohol content in Listerine can dehydrate lice and kill them. To use Listerine to remove lice, saturate dry hair with Listerine, put on a shower cap, and leave it on overnight. In the morning, comb out the dead lice and eggs with a fine-toothed comb. Repeat the process for several nights until all lice are gone.