Olaplex is known for its range of best-selling hair care products and its newest creation is a shampoo for blondes that helps to repair, hydrate and brighten strands. The No.4P Blonde Enhancer

Toning Shampoo boasts a highly concentrated purple formula that's cleansing, sulfate-free and useful for neutralizing brassiness.

Tailored to blondes and those with lightened or gray hair, the toning shampoo creates a rich lather with ingredients that are cruelty-free, pH-balanced, vegan and suitable for all hair types. Free from DEA, formaldehyde and aldehydes, the shampoo promises to boost brightness with nourishing and non-drying ingredients that aren't harsh or harmful.

With its newest release, Olaplex is touting a solution that's been scientifically proven to provide three times the brightness of top purple shampoos.