A mask – being left on for longer than your purple shampoo – has the power to tone more intensely, meaning if you've gone longer than usual between salon appointments or have a build-up of ...

Insider has tested Function of Beauty's personalized haircare routine before and our opinions were mixed, so I was intrigued to see it launch a new purple shampoo and conditioner. Between salon ...

If you'd like to find out more about purple shampoo and how it works, check out the FAQs, with expert information from Chloe Thompson a Senior Colour Director from Sassoon Salon Manchester.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and ...