I didn’t believe in hair oil until I tried Olaplex.

Look, I know. It’s a classic for a reason and I learned that very quickly, but as someone who can’t go more than two or three days without washing my hair, the concept of putting oil in my already kind of naturally oily hair made no sense.

But then, as I mentioned above, I tried Olaplex No. 7 Bonding Oil, and color me shocked — my hair has never looked or felt better.

If you’ve been curious about Olaplex, or you’ve just been looking for a sign to restock, here’s your sign: there’s a secret coupon available on Amazon right now that’ll bring the Olaplex Bonding Oil down to just over $25.

It’s something that rarely goes on sale (typically it only dips lower than this on Black Friday), so you’re going to want to add this one to your cart ASAP.

The Olaplex No. 7 Bonding Oil is one step in the brand’s haircare system that can be used with or without the rest of the brand’s hair products.

It boosts shine, tames frizz, strengthens your hair’s bonds to prevent breakage and also works as a heat protectant.

Per Olaplex, it’s clinically proven to provide 125% more shine, gives 72 hours of frizz control and humidity resistance, as well as a 77% reduction in breakage and heat protection up to 450 degrees Fahrenheit. All of these stats are compared to bleached hair without application of OLAPLEX No.7 Bonding Oil.

A little goes a long way with this product. I typically use just two to three drops, whether I’m using it on wet hair before styling with my Dyson Airstrait or dry hair in need of a touch-up.

For context, I have shoulder-length straight hair that’s frizzy when it hasn’t been styled, but I wouldn’t necessarily describe it as curly or wavy.

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This article was written by Angela Tricarico, Commerce Streaming Reporter for Post Wanted Shopping, Page Six, and Decider.com. Angela keeps readers up to date with cord-cutter-friendly deals, and information on how to watch your favorite sports teams, TV shows, and movies on every streaming service. Not only does Angela test and compare the streaming services she writes about to ensure readers are getting the best prices, but she’s also a superfan specializing in the intersection of shopping, tech, sports, and pop culture. When she’s not writing about (or watching) TV, movies, and sports, she’s also keeping up on the underrated perfume dupes at Bath & Body Works and testing headphones. Prior to joining Decider and The New York Post in 2023, she wrote about streaming and consumer tech at Insider Reviews.