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• Margot Robbie told Elle UK she uses nipple cream instead of lip balm.
• She said that she has "a conspiracy theory that lip balms actually have additives in them to dry your lips out so you keep buying them."
• While we're not sure about her conspiracy theory, she said using the nipple cream Bepanthen "works."

Actress Margot Robbie always seems to wear impeccable makeup, but what she uses on her face might surprise you.

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In a recent interview with Elle UK, which we came across on Hello Giggles, Robbie shared her top beauty tips, and among them were some pretty strange suggestions.

Listing a few of her favorite skin care items, Robbie said that in addition to complexion correction pads by Peter Thomas Roth, and Caudalie's facial mist, she uses nipple cream as an alternative to lip balm.

"I use Bepanthen, which is actually a nipple cream for breastfeeding mothers or diaper rash cream for babies," she told Elle UK on June 23. "I have a conspiracy theory that lip balms actually have additives in them to dry your lips out so you keep buying them. But because Bepanthen is just a cream for dry skin, it works. It's what I've used my whole life."

While we're not sure her conspiracy theory checks out, Robbie does have gorgeous lips so we wouldn't be surprised to see sales of Bepanthen start going up.

Magic hour 🌴

A post shared by @margotrobbie on Mar 27, 2017 at 9:15pm PDTMar 27, 2017 at 9:15pm PDT

The "Suicide Squad" star shared another quirky beauty trick in the interview, this time for her foundation — and it involves a toothbrush.

"My friend taught me this trick that I use it every day. When I put on foundation, I use an eyebrow brush or toothbrush to brush it into my hairline so that it all blends," she said. "Especially because I have blonde hair but tanned skin, if I don't blend it, it looks gross — you can see the foundation in my hair."

Excuse us while we go buy a toothbrush and some nipple cream.

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Watch: Blogger challenges herself to doll up her face using only lipstick

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