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As a beauty-obsessed person who spends three hours every night scrolling through my FYP, I trust TikTok recs with my life. TikTok has introduced me to the calming wonders of the Nécessaire body exfoliator and the glorious Dyson Airwrap. But right now, the product that’s popping off is the one-stop-shop hair treatment called K18.
Endorsed by some of the most popular beauty influencers, stylists and colorists, the K18 Leave-In Molecular Repair Hair Mask promises to do everything traditional bond builders do while also serving as a replacement for your conditioner and moisturizing hair mask.
I mean, the hashtag #K18HairFlip alone has over 10 billion views on TikTok! The transformations are truly wild. What’s also wild, though, is the $75 price tag (FWIW, the mini travel size is $29).
If you’re looking for the same smooth, glossy and damage-free hair that’s all over TikTok for a discount, I have a secret: K18 is on sale at the Sephora Spring Savings event for up to 20% off. Just use the code SAVESPRING at checkout today!
K18 Biomimetic Hairscience Leave-In Molecular Repair Hair Mask, $29 – $75 (plus up to 20% off with code SAVESPRING at checkout)
While the product claims to work on all types of hair, what works for someone else’s locks may not work the same for yours because —and repeat after me here — everyone is different and unique! But, as mentioned above, you won’t be able to stop thinking about the K18 before and after posts. Let @honeycaycay show you exactly how to use it with this transformation post.
Obviously, TikTok’s reigning beauty guru @mikaylanogueira also got in on the transformation posts.
Finally, there’s this super fun one from @melinda_melrose that’s like serotonin straight to the veins.
Yes, the price is a large pill to swallow, but theoretically, this product can replace your need for multiple other hair products, like masks and conditioners. And with the Sephora sale happening, everything is pretty much justified!
With 4.4 out of 5 stars from over 2,000 Sephora shoppers, K18 is clearly doing something good over here. You can also take a peep at some of our other favorite hair treatments on sale at Sephora with the code SAVESPRING below:
Olaplex No. 3 Hair Repair Perfector, $28 (plus up to 20% off with code SAVESPRING at checkout)
Briogeo Don’t Despair, Repair! Deep Conditioning Hair Mask, $38 (plus up to 20% off with code SAVESPRING at checkout)
amika The Kure Multi-Task Repair Treatment, $29 (plus up to 20% off with code SAVESPRING at checkout)
The INKEY List PCA Bond Repair Hair Treatment, $12.99 (plus up to 20% off with code SAVESPRING at checkout)
If you liked this story, shop these editor-approved spring picks from Nordstrom.
Special Offer for YouSephora's sale section is full of deals on Fenty Beauty, Urban Decay and Tarte
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FYI, today's the last day you can get these TikTok-favorite beauty products for up to 30% — including the Dyson Airwrap