If you were a 90s kid, you’d recall filling glass bottles with layers of coloured sand to create some psychedelic gift, normally saved for Mother’s Day. Take that premise, apply it to your hair and you've got Sand Art Hair.

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Coined by hair care line, Prava, the technique involves using a paintbrush to coat your strands with every shade on the colour –wheel, instead of traditional root to tip ombre, where the roots are one solid shade and the ends are another.

Rainbow coloured hair is big news in beauty at the moment (just take a look at these celebs), so this latest trend doesn’t come as too much of a surprise. What does come as a surprise is the amount of effort that goes into it. Just watch Rebecca Taylor’s how-to video below and you’ll see why. On that note, if you’re not accomplished in the art of DIY box colour, visit a specialist.