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

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.

For those wondering which of the best blue shampoos for brown hair is worth incorporating into your hair washing routine, you'll be pleased to know that Trinny has the perfect recommendation.

Trinny’s favourite shampoo and conditioner duo for eliminating orange tones

Since launching in the 1960s, Redken has made its mark in the beauty world thanks to its scientific approach to professional haircare, particularly specialising in quality shampoos and conditioners.

So, it comes as no surprise that Trinny posted a video to her Facebook revealing her love for the brand's Colour Extend Brownlights range to keep her strands bright and vibrant. In fact, Trinny isn't the only celebrity fan of Redken, as the brand is also behind Michelle Monaghan's shampoo of choice.

The video saw the beauty entrepreneur give a detailed rundown of her haircare routine, including her "saviour" blue toning shampoo and conditioner duo for combating warm tones. “This has saved me from my hair going too orange,” she explains, referencing the two bottles of Redken's Colour Extend Brownlight Shampoo and Conditioner sitting on the side of her bath.

Giving context to her hair colour, Woodall says: "I'm very dark blonde with a darker root, I pick up red really easily in my hair. So, if you have that kind of hair that’s porous and picks up red, go for these babies."

In terms of application, much like other colour-enhancing shampoos on the market, this blue tinted formula can stain (as Trinny also notes), so it’s advisable to wear a glove as you’re applying the product.

Lather it up, much like your typical shampoo routine, being sure to gently massage the formula into the hair before thoroughly rinsing it from your strands.