Strangers Stopped to Ask Me If I'd Had Lash Extensions After Using This Under-the-Radar Growth Serum

My foray into lash growth serums began with a prescription option. Perhaps I was less consistent than necessary, or maybe my lashes are among the small percentage for which the formula makes no discernible difference. Either way, my results had not compelled me to invest in a second bottle. 

A few years later, a handful of non-prescription lash growth serums began cropping up. One of these happened to be Rapidlash Eyelash Enhancing Serum, and its promising reviews caught my attention. Enticed, I pocketed the slender silver tube and placed it prominently among my skincare collection that night, intending to use it daily. Over the months that followed, my skepticism waned, until, eventually, I became a full-blown believer. I’ve since shared the news with numerous friends, many of whom have tried and fallen in love with RapidLash. Right now, it’s on sale — and I fully intend to stock up. 

Shop now: $35 (Originally $46); amazon.com

The RapidLash Eyelash Enhancing serum is a clear, brush-on liquid formula designed to visibly improve lash length and strength with consistent, once-a-day application, in as little as eight weeks, per the brand.

The formula includes a blend of polypeptides, amino acids, and biotin to promote growth, while vitamins from  soybean and pumpkin seed oil provide strength and nourishment for a glossy, healthy sheen. The applicator is similar to that of a liquid eyeliner, and takes all of two seconds to swipe across the lids.

Similar to its brow growth counterpart, which “completely regrew” one InStyle writer’s over-plucked brows in three months, this lash serum works, well, rapidly. For me, results showed within two months, albeit subtly at first — initially, I questioned whether I was swayed by a placebo effect. It wasn’t until my lashes began gliding against my glasses that I fully realized the power within the tiny tube. An increasing number of people — some of whom were strangers — began complimenting my long, fluttery fringe in the months that followed. Moreover, a handful of people were incredulous when I told them I wasn’t wearing lash extensions. 

Today, I am in the midst of a major romance with lash extensions. For fear of loosening the adhesive, I’ve paused my nightly RapidLash routine. As I was researching the product, literally this morning, however, I learned that RapidLash and lash extensions can, in fact, coexist. I’m thrilled, and fully intend to restart my serum routine tonight. Incidentally, shoppers whose lashes have become brittle from lash extensions swear the serum improves lash health and spurs new growth. “[My lashes] are…damaged from years of eyelash extensions, and I have bald spots,” says one shopper; with this serum, they’re “starting to see some new growth in those spots.” Another, who is on their third tube of Rapidlash, says their lashes are “thick and long” thanks to the serum.

If you’re looking for a lash growth serum that visibly lengthens lashes, consider RapidLash Eyelash Enhancing Serum. As with any product of its kind, consistency is key — luckily, eight weeks passes by in the blink of an eye.