That's right, washing your hair is often framed as a key cause of fading color, but as it turns out, the answer to your burning question, "When can I wash my hair after dyeing it?" is less about ...

There are some clear telltale signs when you under-wash your hair ... have an impact,” she notes. Hair washing has also been held responsible for fading hair color quicker, encouraging frizz ...

From neutralising brassy tones in blonde hair to boosting the rich, warm tones in brunettes and even fading-out greys, these supercharged shampoos deposit small amounts of colour with every wash.

It may once have been hidden with dye ... keep grey hair bright”. “For swimmers or those who use lots of heat or styling products, this could be required as much as alternate wash days ...