OK - we know what you're thinking: "But won't my hair get all gross and greasy?" Yes -- if your hair is used to being shampooed every day, it'll take time to adjust. But the greasiness will be temporary, we promise! Once you get over the hump (in about a week), you'll find that your hair looks a whole lot healthier. Daily shampooing actually strips your hair of its natural oils, which dries it out and leaves it more vulnerable to the elements. If you give the shampoo a rest once in a while, the oils will have a chance to come back, making your hair more shiny and bouncy. And, hey, it's cheaper, too!