Dry shampoos first appeared in the 1970s, when products like Psssssst! instant spray shampoo were advertised as an easy way to keep your hair clean between shampoos. These products typically did not live up to the hype (they were kind of goopy or clumpy), and dry shampoos went out of style. Now they’re back — sometimes known as “hair refreshers” — and are much improved. These products are helpful if you have dry, color-treated or thin hair, when daily shampooing (with water) will cause undue stress on your tresses. According to In Style magazine, Brooke Shields uses dry shampoo in between stylings. Oscar Blandi’s Pronto dry shampoo spray ($21 for 3.2 ounces) absorbs excess oil and increases volume in your hair. Klorane’s gentle dry shampoo with oat milk ($16) is a hypoallergenic aerosol spray with oat extracts. You spray it on, wait a few minutes and then brush your hair out, and it should feel lighter and cleaner. Ojon rub-out dry cleanser to go ($10) is fortified with Ojon oil, which comes from a Central America, and works well when you’re in a hurry or if your hair is damaged from a bad perm or dye job. Biolage by Matrix Scalptherapie oil control treatment ($14) supposedly makes your scalp feel cool and fresh. Bumble and Bumble’s hair powder (pictured) not only is great for dry cleansing but also comes in five tints for black, brown, white, red or blondish for even more of a touch-up ($19 or $34).