Anyone who washes every second or third day, or less, and wants clean-looking roots and some lift in between. AG makes it for all hair types; it is untinted, and AG now recommends it for people who used its discontinued tinted Brunette dry shampoo.

It's especially handy for fine hair that goes flat quickly, and for colour-treated hair, where stretching the time between washes helps colour last.

Simply refreshes hair and adds volume in one step. The rice and tapioca starches soak up oil, the formula leaves roots fuller rather than flatter, and because it's untinted it works for any hair colour. It's a simple way to get an extra day or two out of a wash, which also helps colour-treated hair keep its colour longer.

• Shake the can well.
• Spray at the roots, section by section.
• Leave a moment, then massage in with your fingertips.
• Comb or brush through to blend in any residue, then style.

Pros:

• Rice and tapioca starches absorb oil
• Gives fine, flat roots extra volume and texture
• Untinted, for any hair colour

Cons:

• Can look white if sprayed too close or too heavily; it needs to be massaged in and brushed through
• Some users find the spray strong, so start with a short burst
• Aerosol with flammable propellants; keep it away from heat and flame
• Doesn't replace washing; starch builds up at the scalp if you skip shampoo for too long