The Kardashian sisters finally revealed their favorite beauty secret.
Khloe Kardashian admitted: "I'm now a huge fan of coconut oil, avocado oil and argan oil from Morocco."
"I use them on my hair and skin and even cook with coconut oil."
Kourtney once revealed that she uses coconut oil as part of a once-a-month hair mask to keep her locks shiny. The recipe is said to include avocado, mayonnaise, egg, olive oil, castor oil and coconut oil.