Bye-bye orange tones! Trinny relies on this blue shampoo to keep her brunette locks bright and vibrant

Image of Trinny Woodall smiling with curly highlighted brunette long bob and wearing an iridescent halterneck gown, on a mauve background.

Calling all brunettes who like to keep things cool - you can wave goodbye to warm hues by investing in a blue shampoo.

You've most likely heard of the best purple shampoos for banishing brassy yellow tones in blonde strands, but have you met its blue counterpart, designed for brunette locks? These indigo-hued formulas are designed to banish orange or red tones within brunette hair, unveiling a cooler and neutral appearance, which can make darker strands appear more vibrant.