Kendall Jenner's biggest beauty sin was biting her nails.
The 'Keeping Up With The Kardashians' star admits she uses to get distracted by bitting her nails until her dad taped them so she'd stop.
She shared: "When I was younger, I used to bite my nails so bad. I used to play sports, I played like every sport. I would be playing soccer and I'd be in the middle of the field just zoned out, biting my nails, and I'd like miss the ball going past me.
"My dad got so mad at me that he then would tape my nails up so I wouldn't bite them because the bitter stuff you can paint on I just used to bite through! But I stopped. I'm so happy I stopped. I don't think I have any other bad habits. I never picked my skin. My sisters told me, even before I had acne, to never touch my face. I stuck to that."
Now, the 20-year-old model tries to get into a good beauty routine and always washes her face before bed.
She added to Vogue.co.uk: "I'm big about washing my face before I go to bed, washing it when I wake up in the morning, getting good sleep and drinking a lot of water. Those are just easy things that you can do for your skin."