3 things celebs always say they do for better skin that are huge lies

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We're down to clown with half of Hollywood claiming their lips are injection-free. But we draw a line at the bogus skin claims. No one has ever slept her way out of acne (or hyperpigmentation, or rosacea, or dry skin). Here are three things celebrities always say they do that are big, fat lies.

The lie: "I drink 400 bottles of water a day to hydrate my skin and flush out toxins."

The facts: The most clichéd tip in Hollywood is also the biggest myth. "There's absolutely no data to support the claim that drinking a ton of water will hydrate your skin," says Joshua Zeichner, the director of cosmetic and clinical research in dermatology at Mount Sinai Hospital. "Sure, your body will thank you for it, but it's not going to revitalize your skin or flush anything away. Your skin isn't a cleansing organ."

Smiling woman drinking from water bottle

The lie: "I sleep ten hours a night, which is why my skin looks so good."

The facts: OK, there's some truth to this one. When you don't sleep, your cortisol levels stay raised, which can mess with your hormones and promote acne, says Zeichner. But that doesn't mean that a few nights of shut-eye will leave you looking like Cate Blanchett on Oscar night. Sorry.

Young woman sleeping in bed, wearing sleep mask, close-up

The lie: "I cut out [insert food group here] for a week, and my acne completely disappeared!"

The facts: Nope. Just nope. Assuming you have no food allergies, "eliminating one thing from your diet won't regulate your hormones or hair follicles or oil production, especially in as little time as a week," says Mona Gohara, an assistant professor of dermatology at Yale School of Medicine.

Click through the gallery below to see the best foods to buy at Whole Foods, without cutting out any specific food group:

12 PHOTOS
11 best things to buy at Whole Foods
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3 things celebs always say they do for better skin that are huge lies

Freshly baked bread 

Photo: Getty

365 Everyday Value Greek Yogurt

Photo: Getty

Speciality cheeses

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Oats, grains and beans in the DIY bulk section

Photo: Getty

Frozen foods, i.e. pizza and turkey burgers 

Photo: Getty

Alternative milk products

Photo credit: Getty

Frozen berries

Photo: Shutterstock

Raisins and dry fruit in the DIY bulk section

Photo: Getty

Spices in the DIY bulk section 

Photo: Getty

365 Everyday Value Olive Oil

Photo: Getty

Freshly baked goods from the bakery section 

Photo: Shutterstock

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