The secret rainbow hair, a new crazy hair trend

After the gray hair, it's the rainbow hair trend that is getting popular among people. A string of colors has been invading the web for a while but a new trend for the most reluctant has taken its lead on Pinterest and Instagram.

Ladies, here is the secret rainbow hair, a more discreet version!

The concept: A natural and very meticulous coloring on the top, but when you pass your hand through your hair, you can see explosions of rainbow colors on the underside!

We have selected for you the wildest colorama hair spotted on Pinterest.