Jen Atkin is a celebrity hair stylist with a massive client list that includes Jessica Alba, Katy Perry, Sofia Vergara, the Hadid sisters, and Kim Kardashian and the whole Kardashian-Jenner family.
With over 2 million Instagram followers, odds are, this lady knows what she's doing and, apart from having a trick or two to keep her a-list customers happy, she's also got your non-famous oily scalp covered with a simple shampoo hack that will make you think, 'why the fuq didn't I think of that?!'.
While in London promoting her haircare brand, Ouai Atkin told Cosmopolitan UK that treating your greasy roots means utilising a dual shampoo approach.
"No one thinks about this, especially if you're a girl who suffers with a greasy scalp," explained Jen. "But you should wash your hair with two different shampoos, because the root and ends are such different hair.
Jen continues: "Think about it, the ends of your hair have usually been coloured and are pretty dead. So you wanna use a hydrating shampoo like our Ouai Repair, or Ouai Smooth to wash the ends with, but you want to wash the roots with a more cleansing shampoo, like Ouai Volume, or Clean. Wash the roots first, then wash the ends and you're good to go."
So there you go. Time to say haaaaaay to grease-free hair.