Cosmopolitan's Shocking Celeb Beauty Secrets

Halle Berry

This A-lister's anti-cellulite treatment tactic: ground coffee. The actress adds ground coffee to her body wash in hopes that caffeine and the mild exfoliation it offers will help to increase blood flow and smooth the skin.

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Hilary Duff

The new mom and actress has said that she uses a refreshing spray before she puts on her foundation—and also throughout the day. "It makes my face glow!"

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Jessica Biel

The Hitchcock star once said in an interview, "In the car on my way to premieres and awards shows, I'll sit with tissue paper under my armpits so I don't soil the delicate dress fabric. The whole time I'm telling myself, 'Please don't sweat, please don't sweat.' I throw the tissues out right before I step out of the car and nobody ever knows! I just put on a smile and fake it."

Kate Middleton

The duchess reportedly received a bee venom facial before her wedding, done by beauty therapist Deborah Mitchell. It is claimed to be a needle-free shortcut to youthful, line-free skin.

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Lady Gaga

Ever wonder how this singer walks out on stage without glitter flecks all over her face? Scotch tape. After her makeup is done, clear tape is used to clean up any flecks that have fallen onto her cheeks—and apparently it works like a charm!

Rachel Bilson

The Hart of Dixie star and guest editor for Piperlime recently told Cosmo that she turns to Vaseline to remove her makeup. "It just works really well—especially when you're removing eye makeup—and it's gentle on my skin."

Emma Stone

The Spider-Man starlet recently said in an interview that her allergies prevent her from putting many products on her skin, so she uses natural grape-seed oil from the grocery store. “I just use [it] on my face as a moisturizer,” explains Emma. “After the shower, I pat it on, and then I’ll use it throughout the day and at night."

Taylor Swift

This singer-songwriter once used a Sharpie as eyeliner in an airplane bathroom because she didn't have any with her. "I don't recommend it," she's told reporters, and we agree!

Kim Kardashian

According to this reality star, a spoonful of sugar helps your skin glow, which is true. Kim adds the sweet stuff to her body wash "for a gentle exfoliating experience."

Sienna Miller

This actress revealed that she used ketchup to remove the green tinge from her strands after a dye job gone wrong.

Jennifer Aniston

She gets her glow from being newly engaged to Justin Theroux, but she keeps her skin youthful by swiping Vaseline under her eyes every night to prevent wrinkles and fine lines. How much petroleum jelly exactly? Apparently she uses a quarter of a teaspoon under each eye.

Evan Rachel Wood

Evan confessed to Cosmo earlier this year that she uses olive-oil-based products in her beauty regimen. She said that she uses it to take off her makeup at night and then leaves it on as a moisturizer, which is great for her sensitive skin.

Jessica Alba

In an interview, this actress and busy mom revealed that her lash curler is her best beauty friend: "You should always curl your lashes. I usually don't use mascara that much unless I'm looking really tired and puffy-eyed. I just curl my eyelashes and brush a little mascara on the tips."

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Mariah Carey

Mariah plumps up her pout the au naturel way: with mint extract, which she mixes into her gloss to get blood flowing to her lips.