Kendall Jenner losing her eyebrow hair to bleach

Model Kendall Jenner fears the constant bleaching of her eyebrows for fashion shows will leave her bald.

Kim Kardashian's sister has rocked the bleached look to walk in a number of top designers' shows, including last week's (ends19Feb16) Marc Jacobs runway presentation during New York Fashion Week.

However, 20-year-old Kendall admits she dreads undergoing the harsh dye process because it's starting to make her brow hair fall out.

The Keeping Up With the Kardashians beauty makes the confession in a new post on her website, in which she discusses some of the extremes of life as an in-demand model.

"The worst is when designers want me to mess with my eyebrows," she explains. "It always freaks me out because every time they do it, I lose them. They literally fall OUT! It's bad - I really hate getting a bleach."

Kendall wasn't the only star to bleach her brows for the Marc Jacobs show - Lady Gaga also showed off the bare look as she turned runway model for her designer pal.

"We bleached the brows because it makes it a blank canvas to change the structure of the eye," make-up maven François Nars, founder of the NARS cosmetics brand, explained to People.com backstage at the Marc Jacobs event.

"If you're limited by an eyebrow sometimes you just have to follow the shape of the eye which is more limiting. It looks almost like a mask when they go on stage."