I Tried the Lash Serum Sydney Sweeney Swears Made Her Eyelashes Grow Like Crazy

Lash serums can definitely be tricky. Believe me, I spent a lot of my time and energy trying different ones until I found a few that really work. Although it took me a while, I now have a solid handful of serums that really help out my normally short, sparse lashes. One of them also just happens to be a favorite of Sydney Sweeney's. She revealed once in an interview that after using RapidLash's Eyelash Enhancing Serum ($50), her eyelashes "started growing like crazy." Even she isn't immune to TikTok—she started using it after discovering a review of the serum there and hasn't stopped using it since. 

Naturally, I knew I had to try this one out for myself to see if it's worthy of adding to my rotation. If you're curious about my thoughts on this one, keep scrolling. I'm sharing all the details below.

Before trying this lash serum out, I was using GrandeLash's Lash Enhancing Serum. It definitely worked well for me, but I felt like my results started to plateau after four or so months. I only had enough time to try out RapidLash for three and a half weeks before writing this, but I'm definitely impressed with the results so far. It's always a bit hard to tell if a lash serum is working those first few weeks because your natural lashes don't look dramatically longer yet, but you can more easily see some length has been added when you put on mascara.

I actually noticed that my lashes were already a bit longer after one week of using this. I'd say that's pretty impressive! What I really love about this formula is that it contains growth factors, biotin, and peptides which help strengthen and promote healthy growth. I also like that it doesn't include prostaglandins, which aren't necessarily considered unsafe, but they can cause some interesting side effects like eye irritation, skin discoloration, and even an eye color change. So many lash serums on the market use them (the main one being Latisse) so it's just something to look out for if you have sensitive skin or eyes. 

Anyway, I have to say, this lash serum gets my approval 100%. Although I haven't been using it long enough to share any dramatic before and after photos, I've definitely seen noticeable growth in just a few weeks which is impressive. It also doesn't irritate my eye area which can be really sensitive. The price tag is a bit high at $50, but it's actually still cheaper than a lot of other formulas on the market and you can get it without a prescription (unlike Latisse). If your lashes could use a bit of extra help, I say give this one a go. I don't think you'll regret it.