Kim Kardashian admits to bad beauty habit during talk show appearance

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For someone whose sister owns a multimillion-dollar makeup brand, Kim Kardashian sure acts like she’s running low on mascara and foundation.

In an interview on E!’s “Busy Tonight” hosted by Busy Phillips, Kardashian admitted to sometimes sleeping in her makeup as a means to “salvage it” for another day, though more for time-saving reasons than money-saving ones.

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Phillips found out about Kardashian’s nighttime habit during a Q-and-A session featuring questions submitted by fans.

“Have you ever accidentally slept with your makeup on?” Phillips asked on behalf of a viewer.

“Oh, all the time,” Kardashian responded. “Like, even if I can’t have glam the next day, I’ll like sleep like perfectly — maybe I’ll redo my skin — but I’ll try to salvage it for two days.”

Unfortunately for Kardashian, dermatologists say sleeping in makeup is a no-no, and to avoid it if at all possible.

Jessica Weiser, from the New York Dermatology Group, told Glamour in 2017 that leaving makeup on your face can interfere with the production of healthy skin cells during the night.

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Dendy Engelman, a board-certified dermatologist who spoke with Self that same year, said oils can also get trapped under those layers of makeup.

"[When your skin is clean], the oil at the base of the follicles flows to the surface smoothly, but if there's a blockage at the top of the opening, then that's the first step for causing acne,” Engleman told Self.

Kardashain, meanwhile, also revealed during an earlier segment that her daughter, North, is “into makeup right now,” but didn’t specify whether North had the same bad habit as her mom.

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Aside from makeup talk, Kardashian also revealed that she sleeps in just a “thong and a little bra” while Kanye goes nude or wears just boxer shorts.

“That tracks. That’s what I think you sleep in,” she responded.