Sydney Sweeney Said This Serum Made Her Lashes Grow Like Crazy – And It’s On Sale Now

National Lash Day (yes, it's a thing) is here, and while everyone’s searching for the perfect mascara or falsies, Sydney Sweeney’s secret to enviable lashes has resurfaced – and it’s not what you might expect. Back in 2021, Sweeney shared her lash-boosting secret with Refinery29. ‘I saw a TikTok of a girl who uses this eyelash serum, and I ordered it, and my eyelashes started growing like crazy,’ she confessed. The serumin question?RapidLash Eyelash Enhancing Serum.

Sweeney admitted to using it every day, and the results speak for themselves. ‘Everyone has said something. I don’t ever tell anyone’. She added, ’My make-up artist, Melissa Hernandez, was like, ‘Sydney, your eyelashes are longer.’ Then Donni, my make-up artist for “Euphoria” was like, ‘We don’t even need to put eyelashes on you anymore.'

What makes RapidLash so effective?  It’s infused with Hexatein 1 Complex, a powerful blend of peptides, biotin, amino acids, panthenol, soybean oil, and pumpkin seed extract. This cocktail of ingredients nourishes and strengthens lashes, minimising shedding and promoting fullness. With daily use, you could see results in as little as eight weeks - think soft, doe eyes just like Sweeney’s.

Now, the secret’s out, and the timing couldn’t be more perfect. Just in time for National Lash Day, RapidLash is currently on sale at LookFantastic, dropping from £39.99 to £29.99. This means you can snag the very serum responsible for Sydney Sweeney’s lash growth at a discounted price.

Shop: Sydney Sweeney’s Favourite Lash Serum

Renee Washington, Grazia's digital fashion and beauty assistant, lives online. With a penchant for wispy lashes and streetwear, she writes about the worlds of fashion and beauty from the viewpoint of the modern fashion girlie..