Your Favorite Hair Product Is Actually Bad For You – HuffPost

“It goes into your scalp, it builds up, and your scalp can’t breathe,” says French hair maestro Christophe Robin. “You want your scalp to be fresh and to be able to breathe. It’s okay for one night ever so often, because you’ve got a date and have no time to wash your hair, but not for one day and one night, and you continue to put more on.”