We take a look at the products you've awarded cult status because you just can't stop buying them. And why is that, we ask? Because they truly work, leaving your hair looking healthy and fabulous.

John Frieda Frizz-Ease Serum
One sold every 16 seconds in the UK.

This can't-live-without product changed the morning routine of thousands of women used to getting up early just to fight unruly, kinky, frizzy or over-processed hair. One coating of this magic serum later however, and these women were showing off sleek, straight hair or soft and bouncy curls.

£5.99, available nationwide