We can all do a bit more to help keep waste out of our landfills. Zero waste shampoo bars are a great addition to your efforts to live a greener life. This solid shampoo bar produces a wonderful lather and smells divine. For best results, wet hair and rub shampoo bar directly on hair. Work the lather through and rinse! Easy and fun to travel with. Your bar will last longer if stored on a soap tray that drains.