A US hairdresser has revealed the biggest mistakes she sees from clients in washing their hair and has shared them with the world to lift everyone's haircare game.
While it may seem like a straightforward task, it turns out there are some pretty major mistakes you may be making.
Felicity took to Twitter to explain that firstly, we should all be shampooing our hair twice while washing.
"The first time will cleanse the hair of all the oils and product build up, so that when you do it for the second time the shampoo can actually do what it's intended to do," she wrote.
"Also, only apply shampoo to the scalp and when you rinse it will run through the middle and the ends."
According to Felicity, conditioner should then only be applied through the ends, using a detangling comb.
"And lastly, remember to only wash your hair two to three times a week, because too much washing can cause more build up and damage to the hair," she finished the series of tweets.
The tweets racked up thousands of likes with commenters immediately rushing to ask questions of the hair stylist.
"What if I don't use product in my hair?" one person questioned. "Would I still need to shampoo twice?"
"Yes. Your hair naturally produces oils and can still have a build up without product. So it's best to shampoo twice," Felicity explained.
Others gave it a try and were impressed by the results.
"So I saw this yesterday and decided to try your 2x shampoo advice when I washed my hair tonight... OMG THANK YOU!" one person said.
"My hair honestly feels better now!" wrote another. "I can't believe what a difference that made - or that I'm 26 and just finally learned the right way to wash my hair from a tweet."
"WHAT. MIND. BLOWN. This is the stuff they should teach us in school, damnit!" wrote a third.