According to Naomi Campbell, Kim Kardashian West and Kourtney Kardashian, extra-long, pin-straight hair is the look of the moment — either pulled back into a ponytail or simply hanging down your back. And while many stars have achieved the waist-length look thanks to a few sets of extensions, Kourtney’s “Cher hair” is all her own.
The star shares her secret for keeping it healthy in a new video on her website.
Kardashian’s hairstylist, Andrew Fitzsimons, was so intrigued by the health benefits of Kourtney’s signature avocado smoothies that he decided to make a hair mask version of her mixture.
“Andrew does my hair pretty much every day, and we were talking about my smoothies that I have every morning, particularly my avocado smoothie,” Kourtney says about the inspiration behind their “hair smoothie.”
Fitzsimons explains that avocados are beneficial for the hair because it’s a natural detangler that coats the hair with a light oil, making it easier to comb through.
He then adds lemon, which he says is antibacterial and helps with dandruff. For over-processed, heat-styled and coloured hair, Fitzsimmons loves olive oil, which protects hair from heat damage.
The duo combines 1.5 avocados, 2 tablespoons of olive oil, 2 tablespoons of manuka honey, and the juice from half of a lemon in a blender, and blends it together until it’s liquified. And if you don’t necessarily want your hair smelling like a “cobb salad,” Fitzsimons recommends adding a few drops of essential oil (he chose lavender), which will add a spa-like scent.
To reap the benefits of the mask, Fitzsimons recommends applying the mask, covering it with a shower cap, and leaving it on for about 45 minutes before rinsing.
A Kardashian-approved beauty secret that will only cost a few bucks? We’re sold.
This article originally appeared on PEOPLE.com