Hairstylist explains classic mistake you're making before appointment and how it damages locks

A hairdresser has revealed why you should never wash your hair before your appointment – even if it is greasy.

You might be tempted to give your tresses a shampoo before you go for a haircut or to get your locks dyed, but according to this stylist, that's not the case. Hair expert Rhys, who regularly shares advice on his @rhysandhair TikTok account, recently urged customers to refrain from doing this in the future.

He said: "Why do clients still feel compelled to wash their hair before coming to an appointment? I've had two this morning alone. Not only is it a waste of their time, but loves, I want your hair dirty. I want your hair oily.

"Not only is it my job to wash your hair and make it clean and sparkling and smell lovely, but those oils in your scalp are protecting your scalp against colour. We are putting chemicals on your head and this oil and dirt and that little build up is protecting your hair."

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These oils can help stop damage when applying harsh chemicals, such as colour, according to Rhys. He added: "Let me tell you, if a client comes in and they've washed their hair they get a slap on the wrist from me".

In a message to other people in the industry, he added: "Make sure you educate your clients, you don't want them coming in with clean hair especially when you are about to do a colour service."

Social media users were shocked by the revelation, and some explained they felt embarrassed to go into the salon with greasy hair. One person wrote: "I have heard other posts of hairdressers slamming/making fun of clients who hadn't washed their hair