Get Rosie’s Hair

‘The key to really good, long hair like Rosie’s is to cut the hair all one length and not layer too much, as it can become too thin at the ends. I use invisible layering to give Rosie’s hair really gentle layers. I slice through the ends, removing weight and giving it a beachy look that really flows. Also, a grown-out fringe is essential for Rosie’s hair – cut at nose length.’

‘Long hair like Rosie’s needs to be looked after, good shampoos and treatments all help. Regular trims, no longer than 12 weeks apart – that is the maximum, never go longer than that even if you’re growing it, just have a tiny trim.

Make sure your colour isn’t wrecking your hair; it’s got to be healthy from root to tip. Also your colourist should know that you’re growing it. I see loads of girls with long hair and knackered condition. Sometimes colourists and hairdressers work together.

A permanent blow-dry is really good, it puts protein in, improves condition and reduces frizz. Ironing hair causes damage so be careful and book-in for regular treatments, Kerastase do a great range.’

‘What we tend to with Rosie’s hair is baliage - free-hand technique where gentle colour is painted on through the ends. If you want long hair like Rosie’s you need to avoid using too much bleach, a more natural colour with a lower peroxide level will ensure your hair isn’t wrecked by the colour. A full head of highlights is unlikely to get really long.’

‘She goes for the Kerastase strengthening treatments and products – the Resistance range. Plus, she uses Moroccanoil, £30.45 (HQhair.com); the two brands are a great combination to have.’

‘I usually blow-dry Rosie’s fring