If you have 60 seconds

The speediest way to inject volume and add some grit to the root area is with a dry shampoo. Spritz Batiste Naturally Plant Powered Bamboo Fibre & Gardenia Dry Shampoo, £4.25, directly into the roots on top of your head, and the lower layers too. Flip your head upside down and ruffle your scalp with your fingers. Flip your head back and brush through. Bouncy, right?