For years, I was convinced that even the best eyelash growth serums wouldn’t be enough to undo the damage from a decade’s worth of wearing false eyelashes and lash extensions. The sparse and thinning state of my lashes seemed practically irreversible – and no number of too-good-to-be-true claims or suspiciously dramatic “before and after” pics were going to convince me otherwise.
That said, as a beauty journalist, a big part of my job involves democratising information and separating fact from fiction (even when it comes to things I’m deeply sceptical about). So, in the name of research, I grilled several experts, having also committed to trying a handful of the most-hyped lash serums myself. And as much as I hate to admit it… the results were undeniable.
After just three weeks of using a certain eyelash serum, I could barely recognise my own lashes. They looked darker, fuller, and noticeably longer – something I could never achieve before (even after trying alternative remedies like castor oil or rosemary oil).
While the results weren’t quite enough to make me delete my lash tech’s number just yet, the serum still helped counteract the damage in the long run — and honestly, that’s an achievement in itself.
And I’m far from the only one obsessed. In fact, data shows that over 24,000 of us are searching the web for the best lash serums every month. But before even attempting to narrow down your pick, it’s imperative that you familiarise yourself with how they actually work, and to determine whether a formula will trigger any sensitivity or irritation.
According to Claire Larsen, global master educator at RevitaLash Cosmetics, eyelash serums are similar to a hair conditioner: “They hydrate the hair with conditioning ingredients for shine and flexibility, to prevent brittleness and breakage, they strengthen the hair with ingredients rich in vitamins and strengthening peptides.”
So, whether you’re looking to educate yourself some more on all the benefits and potential side effects of lash serums, or if you’re already hovering over the ‘add to basket’ button, we’re here to help. Below, the GLAMOUR beauty team have spared no effort in curating a definitive edit of their favourite eyelash growth serum. Here’s everything you need to know.
Meet the experts:
How we tested the best eyelash serums
We’ve been testing the best eyelash growth serums – from the Rapidlash Eyelash Enhancing Serums to new launches like Glow For It – for over five years. We’ve ensured to test lash serums that differ in formulations (biotin, castor oil, peptides, and panthenol are just some effective ingredients you can keep an eye out for) – because what may work for your friend’s lashes may not work for you.
