Sydney Sweeney’s lash serum that ‘makes lashes grow like crazy’ goes on sale

Bag yourself a bargain

Sydney Sweeney is one of 2025's it girls, and it's understandably so, with her sexy doe-eyed and golden-locked look.

A few years back, the Euphoria actress opened up to Refinery29 about her beauty routine.

Turns out, the 27-year-old's long, thick lashes aren't just thanks to her genetics - she uses a lash serum that left her whole beauty team stunned with the results.

“I saw this TikTok of this girl who uses this eyelash serum, and I ordered it, and my eyelashes started growing like crazy,” she told the outlet back in 2021.

“It’s RapidLash; I use it every day. Everyone has said something. I don’t ever tell anyone," she said.

"My makeup artist, Melissa Hernandez, was like, ‘Sydney, your eyelashes are longer.’ Then Donni, my makeup artist for Euphoria was like, ‘We don’t even need to put eyelashes on you anymore.'”

RapidLash is an eyelash enhancing serum that is clinically proven to promote stronger, healthier, and visibly longer lashes with consistent use.

Featuring a Hexatein 1 Complex for optimal lash nourishment, the formula is designed for daily use, with 86 per cent of users having seen fuller lashes within eight weeks of use.

And the best part of this all? RapidLash serum is currently on offer on Amazon for 25 per cent off - just in time for National Lash Day.

“RapidLash EyeLash Enhancing Serum has become my favorite over-the-counter lash enhancement serum,” dermatologist Dr Lian Mack told Page Six.

“Apply to the upper lid margin (where the lash connects to the skin), starting from the inside out. Having tested this product personally, I had visibly longer and healthier-looking lashes in just over two months! The formulation applies with ease and no irritation.”

Mack explained that although lash length is “for the most part genetically predetermined,” certain ingredients can promote fuller lashes.

“Biotin (a water-soluble B-based vitamin,) amino acids and polypeptides improve keratin production of the hair, promoting the growth of thicker, stronger lashes," Lian said.

With the RapidLash serum featuring all of these, it's no wonder that Sydney swears by it.