"We created the polarising onyx black and pale blonde colours at Prada, and it feels evident to me that this season is going to be about strong global colours," explained Josh

Wood, celebrity colourist and founder of Josh Wood Colour. "I think, in some ways, it's a slight reaction against balayage or heavily blended colours."

The key to embracing a strong, "one shade all over" look though is to focus on boosting shine. "Peppercorn black can be created with a full head tint to give the hair a super-glossy finish," said Carly Price, partner stylist at Muse of London.

Wood agrees. "Well-conditioned hair is everything this season, linking into hair health as a symbol of our overall well-being."