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Kate Middleton's affordable secret for glowing skin is only $10 for Black Friday

For a long time, Bio-Oil was the affordable beauty secret those in the know would use to diminish the look of scars and stretch marks or give skin an extra dose of hydration. It's certainly a favorite among celebrities, whether it's reality royalty like Kim Kardashian or actual royalty, like Kate Middleton, credit this product with keeping their skin free of stretch marks. (Yahoo Life's beauty writer is also a fan — here's her full Bio-Oil review!) Then came TikTok, and a whole new generation of fans launched it into beauty stardom for a second run. Amazon's top-selling oil now has over 73,000 five-star ratings, with shoppers raving about its many uses. That's why when a sale happens, we feel obligated to shout it from the rooftops. So here we go: Bio-Oil is down to $10 for Black Friday!

(P.S. For even more deals and expert shopping insights, be sure to check out our Black Friday explainer.)

Used to diminish wrinkles, scars and stretch marks, this oil is packed with goodness, including vitamins A and E, chamomile, sunflower and lavender.

$11 at Amazon
Explore more purchase options
$15 at Ulta Beauty$13 at Rite Aid

Why is this a good Black Friday deal?

This is the cheapest we're currently seeing the two-ounce bottle sell for online, and considering it was under a dollar less for Prime Day, we're confident that this is a great price. Plus, how often can you score a royal-approved beauty product for 10 bucks?!

Why do I need this?

So, what's all the hype about? Bio-Oil's popularity stems largely from the fact that it actually works. It's formulated with a variety of oils, including vitamin A, vitamin E, chamomile, sunflower and lavender, which blend together to create a powerful skincare product that stimulates collagen production. Collagen, which creates greater skin elasticity (read: diminished wrinkles), can also help to reduce the look of scars, stretch marks and dark patches.

All those oils also provide some serious hydration, further benefiting your skin. The formula won't clog your pores, so people with oily, dry or combination skin can use Bio-Oil without worry. For those with fresh scars (e.g., from a C-section, or stretch marks from the pregnancy itself), Bio-Oil can help with itchiness as it smooths out the skin.

It's amassed a huge celeb fan base.

Halle Berry swears by the stuff: "It’s the only thing I believe, just in my personal opinion, that actually puts a dent in removing your stretch marks," she told her Instagram followers. "I’ve been using it for, I don’t know, 15 years now. I got through both of my children, this oil helped. I got through stretch marks from my gymnastics days as a kid, this oil helped."

Kristin Chenoweth told Prevention she uses it around her eyes and on her laugh lines. "I want people to know about it. I love Bio-Oil,” she said. "If you’re consistent, it’s huge."

Kate Middleton in a pink dress and blazer.
Kate Middleton is one of countless celebs (and over 73,000 Amazon shoppers) who swear by Bio-Oil.

What reviewers say

Don't want to take celebrities' word for it? We'll let some of its other biggest fans tell you just how amazing this stuff is. One 71-year-old reviewer wrote, "Bio-Oil is the best skin product on the market. I use it twice a day, in the morning and before I go to bed. Small lines have disappeared. My skin is very smooth and seems to glow. A doctor recommended this to one of my friends, who told me about it. I have bought several bottles as gifts."

Another fan called it "freaking amazing!" She wrote: "I use this stuff all over my body. It's great — it's lightweight, so I don't feel like I just took a bath in a deep fryer. I can use it on my face without worrying about breaking out (like I often do when using coconut oil), and it leaves my skin soft and glowing. ... It sinks in fast, so I don't leave greasy fingerprints everywhere. I can't stress enough how great this stuff is."

This happy shopper shared: "I got bit by a dog last summer, and nothing was working to get rid of the scar. I also had a scar from a scratch on my knee, as well as chicken pox scars and scars from wrist surgery. This oil seems to be fading them all!"

"I used to have really bad acne," explained a five-star fan. "The first week of using this I noticed my skin was getting softer and looking glowy, after one month my skin just literally stopped producing acne. Even though I have acne scars they are fading rather quickly. The only con is that it makes your skin look oily but that's to be expected since it is oily."

This multitasking beauty oil even helps with breakouts and acne scarring.

$11 at Amazon
Explore more purchase options
$15 at Ulta Beauty$13 at Rite Aid

Another product Kate Middleton's been seen sporting? These super-cute Superga Sneakers:

These timeless tennies will go with everything — dress 'em up with dresses or keep things casual with jeans and leggings. 

$70 at Amazon
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$69 at REVOLVE

"I saw Princess Kate wearing these sneakers on their Christmas card," wrote one pleased shopper. "I love the simple style of this shoe. It’s timeless yet chic, just like Kate. Perfect fit for my feet. I usually don’t purchase shoes online because I have a wide toe area. They are sturdy and I will be taking them on a European river cruise soon. Maybe I will bump into Her Majesty and we will be twinning!"

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)

The reviews quoted above reflect the most recent versions at the time of publication.

Your Black Friday Shopping Guide: See all of Yahoo’s Black Friday coverage here. Follow Engadget for Black Friday tech deals. Learn about Black Friday trends on In the Know. Hear from Autoblog’s experts on the best Black Friday deals for your car, garage and home, and find Black Friday sales to shop on AOL, handpicked just for you.

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