Anyone whose roots get oily or flat before wash day, on fine, medium or coarse hair. SexyHair positions it for all hair types, and its volumizing side makes it most useful when roots are both greasy and limp at the same time.

It is an easy at-home aerosol: no styling experience needed, and it also suits people who wash less often to make colour last longer.

Plenty of dry shampoos stop at absorbing oil and leave hair flat or dusty. This one comes from SexyHair's Big volume line, so it is made to soak up oil and sweat while building body at the root, and its transparent finish means you can spray close to a part line without a visible white film. It is a quick way to push a blowout or a colour service a day or two further.

Shake the can well. Hold it about 8 inches (20 cm) from the head and spray onto dry hair and scalp, concentrating on the roots and the areas that look oily. Leave it on for 2 minutes so it can absorb, then brush or finger-comb out any excess and style as usual.

Pros:

• Refreshes oily roots and adds lift in one step
• Goes on transparent and brushes out without a chalky cast
• Small 3.4 oz can fits a gym bag or purse

Cons:

• Contains alcohol and fragrance, so it may bother a sensitive or dry scalp with daily use
• Like any dry shampoo it absorbs oil but does not cleanse; the scalp still needs a real wash
• An aerosol is harder to aim at a tiny spot than a powder