Dry shampoo can seem like magic. With just a sprinkle or spritz, the finely milled starches and minerals work like fairy dust to instantly revive slick, days-old hair, staving off wet washes and saving time (if the spell, er, formula is right).
To find our favorite dry shampoos, we tested powders, aerosols, and liquids. And we sought formulas that left oily hair feeling clean and looking fresh, without some of the potential downsides: a white cast, an overpowering scent, crunchiness, buildup, mess, or scalp irritation.
