The cult-favorite makeup remover that Gwyneth Paltrow loves is majorly discounted for Amazon Prime Day

Celebrity-backed beauty products don't have to cost an arm and a leg.

Just take the best-selling French beauty brand Bioderma, for example. Beloved by Gwyneth Paltrow, Victoria Beckham and other Hollywood favorites, it's skyrocketed to become a cult-favorite worldwide. Paltrow herself is a devotee of the company's Sensibio H2O Micellar Water which is marked at only $15. It's no surprise why one bottle of Bioderma's Micellar Water is sold every two seconds.

Serving as both a cleansing formula and makeup solution, the gentle formula works perfectly for those with sensitive skin. "It's unscented, doesn't dry your skin or sting, and gets rid of all your make-up with a few swipes. You're left with soft, clean skin," Paltrow said of "the best makeup remover." And it's not just Hollywood who are fans: Over 2,600 Amazon reviewers agree with the actress' assessment.

If you've been on the fence about taking the Biderma plunge, now is the time. Amazon is offering 34 percent off for its Prime Day -- but given the popularity of the product, there's no way it's going to last long!