The step you're probably missing when washing your hair
Have you been doing this?!
Washing my mane once is more than enough effort (I have a very thick head of hair as my Mammy would say), and the thoughts of having to do it TWICE is more than I can cope with.
However, there's one beauty expert who says double-shampooing is the way forward and it's a key step in perfecting your crowing glory.
Speaking to Vogue.co.uk, George Northwood, hair stylist extraordinaire to Alexa Chung and Rosie Huntington-Whiteley, revealed his shampoo secret:
"Personally, I'm a big believer in the double shampoo,"
"Most people don't actually get their hair truly clean when they wash it, so it ends up covered in a sort of film which leads to dullness and lack of shine over time.
"By shampooing twice you have a first wash, to remove excess dirt and grime, and then a second wash to really get it squeaky clean".
However, you do need to be careful when applying the shampoo, as that's where things can go wrong.
The worst thing you can do is apply too much product as this will only weigh your hair down, the exact opposite of what you're trying to achieve.
He recommends using a small blob each time and says that the first shampoo is just an "external cleanse".
Rosie's hair is only FAB
The second time around is when you really need to work up some suds and give your hair a proper clean, from root to tip.
"The first wash probably won't create much lather as its just cleansing away all of that grime and build-up.
"It can actually be quite half-hearted - just squirt the product into your hands, rub them together and run through the hair. I call it external cleansing.
"Then the second shampoo is your opportunity to really get it right into the roots and create a proper lather".
This way of washing your hair will definitely take a lot longer but the results should speak for themselves.