Kate Middleton's affordable secret for glowing skin is down to $10 — its Black Friday price!

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 75,000 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: The No. 1 bestselling Bio-Oil is down to $10 ($9.75 with the on-page coupon, to be exact) — a smidge less than its Black Friday price — at Amazon! This is the perfect opportunity to treat yourself or the special skincare lover in your life.

Amazon

Bio-Oil Skincare Oil

$10$14

Save $4 with coupon

Used to diminish wrinkles, scars and stretch marks, it's packed with goodness like vitamins A and E, chamomile, sunflower and lavender.

Save $4 with coupon

$10 at Amazon

Explore More Buying Options

$15 at Ulta Beauty$12 at CVS Pharmacy

Why is this a good deal?

Considering this same-size Bio-Oil is back down to its Black Friday price (and even a touch below with the $0.25 on-page coupon), we're confident that this is a great deal. 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."

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."

Amazon

Bio-Oil Skincare Oil

$10$14

Save $4 with coupon

This multitasking beauty oil even helps with breakouts and acne scarring. The on-page coupon knocks $0.25 off the price.

Save $4 with coupon

$10 at Amazon

Explore More Buying Options

$15 at Ulta Beauty$12 at CVS Pharmacy

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

Amazon

Superga Unisex 2750 Cotu White Classic Sneaker

$54$65Save $11

These classic canvas kicks sell out fast, but right now, the princess-approved shoes are in stock.

$54 at Amazon

"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.

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