It's almost impossible to scroll through TikTok or browse the aisles of Sephora without noticing one stand-out ingredient over and over again: hyaluronic acid. The skincare staple has gained popularity over the past few years because of its hydrating and fine-line softening effects, and now it's found in everything from moisturizers to sheet masks to serums—but there's one product that stands out from the crowd. One bottle of L'Oréal's Revitalift Hyaluronic Acid Serum is sold every 30 seconds, making it the best-selling serum in the world, according to the brand. And it's on sale for up to 42 percent off right now at Amazon.
To buy: $14 (was $24); amazon.com.
The serum uses two types of hyaluronic acid to firm, brighten, and visibly soften wrinkles. Other ingredients include vitamin C, glycerin, and castor oil—all of which hydrate your skin and improve elasticity. The lightweight formula quickly absorbs into the skin and doesn't clog pores, so it's safe to use on dry, oily, or combination skin types. L'Oréal recommends applying two to three drops to clean skin twice daily for the best results. Reviewers found it to be especially hydrating when it was massaged into damp skin.
Nearly 20,000 Amazon shoppers have also given the best-seller a five-star rating, calling it a "holy grail product" that's "better than Botox." Some even saw a difference in their skin's appearance after a few weeks.
"At first, I didn't notice a difference [after using this product] except [for] redness on my cheeks in the morning. Today as I was putting on my makeup I noticed the mirror looked airbrushed," another customer wrote. "So I decided to do a one-week contrast, and my jaw hit the floor. I can't believe this drugstore serum outperformed a $200 high-end product. I wish I had started using this 20 years ago!"
This number-one best-selling serum is usually $24, but it's currently available for $14 on Amazon. Add it to your daily skincare routine and see what a difference it can make.