11 best eyelash growth serums that actually work for longer, thicker lashes 2026

RapidLash is one of the most affordable and effective eyelash growth serums on the market.

Before testing, I heard stellar reviews about this budget buy – and, I have to say, it didn’t let me down. I layered on a slick of serum every night and by eight weeks (as promised by the brand) my lashes looked thicker and healthier.

You can also stock up on an eyebrow version (RapidBrow) which is just as effective.

This one needs little introduction: Revitalash was created by an ophthalmologist who wanted to help his wife's confidence after she lost her lashes to cancer. It uses a cocktail of peptides (the building blocks of protein) and antioxidant botanicals to stimulate hair growth and density, while protecting your lashes from environmental damage.

“The very best benefit of our iconic hero product is that the users can achieve a natural lift and curl to their gorgeous lashes – something we have coined, The Curl Effect,” says Claire.

The statistics are impressive too. “With RevitaLash Advanced, we conducted an independent consumer study with 63 participants. After 6 weeks of daily directed use, 98% reported improved lash appearance and 98% reported healthier-looking lashes,” adds Claire.

In my opinion, this is one of the best formulas on the market. With consistent use I noticed beautifully long and fluttery lashes after four weeks – and I had many compliments coming my way too!

If you’re an Olaplex girlie, you’ll be thrilled to know that the brand also has a lash serum – and this is like no other I've tried.

Like your hair needing a healthy scalp to grow from, the same rule applies to your lashes. If your barrier is compromised (think: mascara wiggling and excessive scrubbing) it’ll prevent long lash growth.

Lashbond uses the brand’s bond-building technology to support the skin around your lash line, as well as peptides to stimulate growth. It's a quick worker too, with results showing after a few weeks.

Priced at a reasonable £20, this lash serum contains ingredients found in spennier formulas including pea peptides to stimulate growth from the root and hyaluronic acid to condition the lashes. Alongside these two core ingredients, there’s also green tea extract to boost moisture and cica to strengthen.

I was lucky enough to test a sample before it launched and even after five weeks of consistent application, my lashes look much denser and healthier – which I’ve also noticed makes my mascara look much bolder with a fanned-out effect. The results were on the subtle side, but they were enough for my boyfriend to notice how fluffy my lashes looked, and that’s saying something!

If your 'For You' page looks anything like ours, you would have spotted this pink tube making many appearances. Glow For It's Lash Growth Serum has developed quite the hype, with TikTokers raving about how the formula has improved the length and strength of their lashes.

Naturally, we had to test it for ourselves and we can confirm that the hype is warranted. In just two weeks we saw a noticeable difference in the density of lashes (we're waiting on length). Plus, it uses natural ingredients, like pumpkin seed extract, ginseng and calamus root, to stimulate hair follicles.

If you're already somewhat blessed in the lash department, but simply want a treatment to keep your existing lashes conditioned, turn to Dr.Althea’s Lash Boost Serum.

The milky serum contains biotin and peptides to keep the lashes and skin hydrated – creating the perfect environment for healthy, strong hairs to grow. The application is easy too; the mascara-style wand allows you to brush the serum on, while the sponge tip can be used to apply directly to the lash line.

Sweed’s clever serum is boosted with nourishing and growth-stimulating ingredients to encourage fuller, longer lashes.

Bolstered by vitamins and hyaluronic acid, the lightweight formula feeds your lashes with hydration while strengthening brittle hairs. Alongside added peptides, the serum aids keratin growth to result in silky, longer lashes.

I also appreciate the super-slim brush to ensure that the product is only applied directly onto the lash line, and not the surrounding skin.

This pick isn’t something you’d casually pick up at the checkout while shopping for a new mascara. It’s an investment for those who are serious about the length and long-term health of their lashes – because when I say it works, it works.

If I can’t believe it myself, the number of times I’ve had people ask if I’m wearing falsies proves it. Though I don’t use the AB Enhancing Serum anymore (this was the first formula I *ever* tested) I can fully vouch for the transformational results. In fact, writing this has made me realise how much I miss using it.

It’s hard to part with the cash but, if you want to ditch the lash extensions for good, it’s the best way forward.

If you're yet to try Chāmpo, you're seriously missing out. I first fell in love with the Pitta hair growth serum – an effective tonic that optimises the hair-growth process – and now I'm lusting after the new Pitta Lash Serum.

Sweep a layer on the top and bottom lash line, and in only a few weeks you'll notice improvements to the density and length of your lashes. And the best part? It's free of nasties which can cause irritation but is instead formulated with natural ingredients to support the lashes.

Blink Brow Bar may be your go-to for microblading or a lash lift but know that the London-based salon also has some stellar products to use in your home.

The latest Lash Boost is described by the brand as a “360° lash serum, designed for strength, health and length” – and who doesn’t want that? It formulated with powerful peptides and ginseng root extract to stimulate lash follicles (which encourages growth) and to improve the condition of your lashes too.

Rather than just focusing on length, this is an all-rounder approach to lash growth serums. So if your flutters are in desperate need of repair, consistent use will result in stronger, thicker, softer and longer lashes.