An expert has clarified exactly how often you should wash your hair and the answer might surprise you.

If you're someone who washes your locks every day then you might want to rethink that because according to this advice, this isn't the best idea. Instead, you'll want to wash it twice and at the most, three times a week because this helps to maintain the texture and shape of your hair. Justin Anderson, creative director of his own haircare line and celebrity hairstylist, spoke to Byrdie and explained the problem with overwashing.

"Overwashing your hair—which means every day or more—will dry out your hair, not only because you are stripping the hair of its natural oils, but also because you will probably end up using heat on the hair more often as well".

Not only that, if your hair is coloured, you'll find that the colour fades a lot quicker if you're washing it every single day. The last thing you want to do is ruin your mane of shiny, glossy locks (side note but this image is giving us major hair goals).

Beautiful work? #goals @marciooliveira_oficial

A post shared by @hairextensionhero on Jul 4, 2017 at 1:48am PDT

Anderson also has a top tip for those with coloured hair and that's to avoid hot water when washing your locks. Why? Simply put, hot water opens the cuticles of your hair and can strip the colour, not exactly ideal if you've just forked out on a visit to the salon. Instead, try rinsing your hair in lukewarm to cold water.