12 best eyelash growth serums 2025, tried and tested

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It's an investment you won't regret

Eyelash growth serums really can have magical effects. Yes, you can rely on a great volumising mascara, but that will only get you so far. You need an efficacious serum to take your natural hairs from stubby to sky-high.

Many come with bold claims; they promise towering, fuller lashes within a matter of a few weeks. Some, truthfully, are a fad, but if you find the right formula and are willing to spend more than a fiver, they really can make a huge difference to the length and density of your lashes.

The UKLash serum has remained a loyal must-have (oh, and fyi, the UKLash hair growth serum is now a thing) and while it may be spenny, I can testify that Revitalash genuinely works. Not to brag, but I could buy a Stanley if I had a pound for every time I've been asked if my lashes are real – and it's all thanks to these clever formulas...

If you're looking to ditch the falsies and are in search of eyebrow-skimming lashes, take a scroll below. Plus, I hit up Claire Larsen, RevitaLash Cosmetics, Global Master Educator, to answer the FAQs when it comes to lash serums.

To bring you the very best eyelash growth serums, I’ve examined ingredients, ease of application and the results of each and every tube. The ones that made the cut delivered impressive improvements to the length, density and condition of the lashes when used regularly. They’re also easy to use and apply directly onto the lash line without spilling onto the surrounding skin. Price point plays a role too. If you want to see results, you have to spend more than a fiver. But, to cover all bases, I’ve included some budget players that do a damn good job too.

UKLash's serum has been a fan-favourite for years, and the incredible before and after transformation pics prove why. Oh, and not to mention it's rarely reduced with 20% off – yes, run to checkout now.

Its impressive formula is cocktailed with a bunch of high-grade ingredients – like pentapeptide-17 and vitamin B7 – to encourage growth by stimulating keratin (protein) production, which is already present in your lashes.

Plus, if you aren’t convinced, you can get a 100-day money-back guarantee. It’s a win-win really.

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

Apply the clear serum to your upper lash line once or twice a day (morning and night) for eyebrow-skimming lashes. 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.

“In my opinion, 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, 98% reported healthier-looking lashes and 98% reported,” adds Claire.

You can also grab the serum in 2ml, 3ml and 3.5ml tubes which is a pretty handy feature.

Member price: £35

Trust us when we say that Beauty Pie's Lash Fuel serum is always out of stock, so get your fill now if you want brow-skimming lashes.

What's the secret sauce? It's all about peptides, which are chains of amino acids that make up proteins in the hair structure. When you feed your lashes with this serum, the peptides will stimulate quicker and stronger growth, resulting in enviously dense and fluffy lashes.

Stay loyal to it and you may see results in as little as two weeks.

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.

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.

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 Luscious Lash Oil is described by the brand as a "health shot for the lashes". Rather than prostaglandin it calls on a unique and plant-based oil blend to condition the lashes and stimulate growth – there's castor oil, jojoba, apricot kernel and rosemary, just to name a few.

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. 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.

The Scandinavian Biolabs Bio-Pilixin Eyelash Growth Serum has a rollerball applicator as opposed to a brush, making it more hygienic while giving your lids a cooling massage as you roll the product in.

The clinically tested formula – created by medical experts and tested by dermatologists – contains biotin to condition, capilia longa to reduce hair loss and an amino acid blend to boost lash strength.

Glide it on every day and after five months you should see a great improvement in your lashes strength and length – if not, you’ll get your money back.

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.

The Ordinary is famed for its ingredient-led formulas that genuinely do bits. So, nothing is different with its lash serum – and at a budget-friendly price which we could all do with right now.

While the results won’t be as transformative as costly alternatives, with loyal use it’s a great middle ground if you’re wanting to boost the overall health of your lashes.

Use twice daily and the peptide complex helps to stimulate denser, fuller lashes.

There are so many factors that can contribute to lash loss. Tugging too hard with makeup remover is a main culprit, curlers can put stress on your lashes and even something as innocent as an eye mask can rub and cause brittle and weak lashes. Not to mention falsies and extensions – that's a different story.

Luckily, a top-quality lash serum with a nutrient-packed formula can recondition lashes and stimulate faster growth. So, what's the secret...

According to Claire, lash growth serums are like 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, they protect the health of the hair with free-radical fighting antioxidants and they enhance the overall beauty of the lashes for a healthier-looking lash,” she says.

Then, there’ prostaglandin – a lipid-based ingredient used to treat glaucoma that was later discovered to have lash-lengthening benefits. But if you’re looking for a formula that contains high levels of prostaglandin, you won’t have much luck as earlier formulas were subject to controversy for causing low-risk side effects (think: redness and pigmentation).

So, as you may have guessed, most serums are now fortified with a much weaker prostaglandin base – or an alternative active – so that even the most sensitive can get on with them. Peptides and proteins also feature heavily, working to stimulate growth and encourage dense, dark lashes.

While every product on the market will have been tested heavily, and many are dermatologically and ophthalmologist tested too, it's important to read the instructions and follow them fully as some serums may suggest a patch test.

“A consistent routine is the key to achieving optimal results,” says Claire. She suggests using an eyelash serum once a day directly above the lash line. “Results will vary depending on the individual, but results can often be seen almost immediately and will increase over time,” she adds.

Most lash serums have a fine brush or felt-tip style applicator to localise the product on your lash line, without it seeping into your eye or surrounding skin. This way, the serum will directly feed your lash follicles to boost them to their max potential. So, all in all, if you pick a reputable brand and do a patch test (it's always wise to) you're good to go.

Clare Stephenson is the Senior Beauty Ecommerce Writer for Cosmopolitan and Women’s Health, covering all things makeup, skincare and hair care, as well as deals events including Black Friday and Amazon Prime Day.

Clare has been an e-commerce writer since 2022, writing matter-of-fact reviews such as deep dives into skin concerns and shopping pages filled with her favourite products for every budget and need. When she’s not typing away, Clare is in front of the camera creating shopping content for Cosmo’s TikTok Shop, testing the most viral beauty products to know.

Before working at Hearst UK, she received a BA degree in Multimedia Journalism at Bournemouth University, focusing her studies on the world of magazines and editorial. From there, she worked as an editorial assistant at Voir Fashion Magazine, covering events like Fashion Week and interviewing reputable brand founders. Outside of work? You can find Clare strolling along London’s Columbia Road Market, pouring her fourth coffee of the day or horseback riding in the countryside.

Follow Clare on Instagram @clarefrancesstephenson

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