While repeated exposure to water poses no threat to a mermaid's tousled-to-perfection hair, for us mere humans, maintaining our style means going a day (or two) without a wash. Unfortunately, an intact coif usually comes at the expense of oily roots and lackluster strands. That is, until, we sprinkled on a bit of this fairy dust-a.k.a. dry shampoo. It's packed with mattifying ingredients, like arrowroot powder, kaolin clay and baking soda, to absorb excess oil while also boosting hair's volume. Plus, it's enriched with rose geranium and palmarosa essential oils to envelop strands in a delicately intoxicating rose scent.