If you can resist a purple streak in your hair no longer, then look out for Colour Mania, little pots of hair colour (without harmful chemicals) that mean you can really rock a rainbow head if you want to.
It apparently lasts a few days but will wash out straight away if you have green regrets and you use it by rubbing and sliding through your hair til you have the effect you like. You then seal it in with hairspray or straighteners and there you have it. They’re £5.99 from Urban Outfitters and New Look stores.
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