Hidden rainbow hair trend

This hidden rainbow hair trend is so cool! Blondies in Melbourne originated the style. Last year, it was all about glitter roots. But so far this year, everyone's been freaking out over geode hair and, most recently, unicorn-approved hidden rainbow roots — brought to you by the innovative Aussies at the Blondies of Melbourne salon. Thanks to Instagram, you can see exactly how this look was executed, but allow me to walk you through it: 1. Get a brave volunteer to be your hair model (or take the plunge yourself!) and bleach only their/your roots: 2. Lay out your rainbow hair color for all to see — and photograph! The babes at Blondies of Melbourne use Pravana, but you can also use Manic Panic if you're not ready to commit long-term: 3. Apply the color in a rainbow-like fashion; leave it on for 30 minutes: 4. Rinse away the excess product using "cold water to avoid colour bleeding," says salon owner Karen Lewis. Hot water also opens the cuticle, aka your hair's outermost layer, allowing the colour to wash out quicker, so cold water it is! 5. Reveal your rainbow roots to the world! 6. Don't want to hide your rainbow roots? (who does?!), show them off with fun braids. Read more: https://bit.ly/2JPJuSg Subscribe to Cosmo UK: https://bit.ly/2HJwtEM For more from Cosmo, visit http://www.cosmopolitan.co.uk