Invented in a Paris hair salon in the 1970s, the balayage hair dye technique is nothing new

Its popularity has risen dramatically in recent years, yet, ‘What is balayage?’ remains one of Europe’s most googled beauty questions.

Why the confusion? “I think it’s down to social media influence,” says Tim Scott-Wright, award-winning hairdresser and founder of The Hair Surgery.

Every blonde knows, that of all the hair disasters likely to strike between salon appointments, developing unwanted brassy locks might just be the worst.

Even if you shell out a small fortune getting the perfect creamy colour at the hairdressers, just a few short weeks later, your hair can often turn an undesired shade as your icy tone fades fast.

Fortunately, there are several things you can do to both prevent and fix an attack of the brassy blondes. Here’s what the experts have to say…