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14 best eyelash growth serums for longer lashes
It's an investment you won't regret
Once you find the best eyelash growth serum, it really can have magical effects. Yes, you can rely on a great volumising mascara, but that will only get you so far. To achieve the long, flutters of your dreams, you need an efficacious serum as this will transform your natural lashes from stubby to sky-high.
Now without sounding like a brag, I receive a lot of compliments on my lashes – and while, yes, I have been blessed with naturally full flutters, I can hand-on-heart say they completely transformed with consistent use of a dedicated lash serum, packed with conditioners and strengthening peptides. Once I educated myself on the best rated eyelash growth serums, my lashes became stronger, longer and thicker in just a matter of months.
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 top eyelash serums and are willing to spend more than a fiver, they really can make a huge difference to the length and density of your lashes.
Top eyelash growth serums 2026
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As Cosmopolitan UK’s Beauty Ecommerce Writer, it’s my job to test everything so I can recommend you the very best formulas. It has taken some time – I only have two sets of lashes, ppl – but after years of testing these formulas I have some faves. The UKLash serum has remained my loyal must-have and while it may be spenny, I can testify that Revitalash genuinely works. 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; Nima Pourian, founder of UKLASH; and Hollie Parkes, leading lash and brow artist, to answer the FAQs when it comes to lash serums.
The best eyelash growth serums our beauty team rely on
Pros
- Ophthalmologist, dermatologist and trichologist approved
- Money-back guarantee
- Thin wand for easy application
- Fragrance-free
Cons
- Can we get a bigger tube, pls?
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.
Size: 3ml
Ophthalmologist approved? Yes
Features at a Glance
| Vitamin B | Protects and nourishes the hair |
|---|---|
| Myristoyl Pentapeptide-17 | Stimulates keratin, a vital protein needed for lash growth |
| Biotin peptide | Produces fatty acids, helping the growth and strength of the lashes |
Clare testing the UKLash Eyelash Serum
Pros
- Prostaglandin-free
- Suitable for sensitive eyes
- Conditions and strengthens the lashes
Cons
- Results may be slower compared to more potent serums
“If you’re prone to sensitivities and want something gentler, opt for the UKLASH Sensitive Lash Serum. Made with 97% natural ingredients, including Pea Peptides and Camellia Sinensis, it helps calm and soothe the lash line while nourishing the root to support softer, gradual growth,” says Nima.
Size: 3ml
Ophthalmologist approved? Yes
Key Ingredients:
| Camellia Sinensis | Contains antioxidants and anti-inflammatories to protect the follicles and increase blood flow |
|---|---|
| Hyaluronic Acid | Boosts lash hydration |
| Centella Asiatica | Stimulates blood circulation at the root |
Glow For It Lash Growth Serum
Pros
- Thin wand for easy application
- Fragrance-free
- Takes two weeks to see results
Cons
- Some reviewers noticed it caused redness to begin with, so we'd recommend a patch test
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.
Size: 3ml
Ophthalmologist approved? Unknown, but it is dermatologist tested
Key ingredients
| Glycerin | Supports the overall condition and strength of the lashes |
|---|---|
| Green tea leaf extract | Can aid lash growth |
| Biotin | Encourages strong lashes and will prevent fall out |
RevitaLash Advanced Eyelash Serum (six month supply)
Pros
- Super speedy (and amazing) results
- Easy application thanks to the thin wand
- Comes in multiple tube sizes
- Fragrance-free
Cons
- £££
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 and 98% reported healthier-looking lashes,” adds Claire.
You can also grab the serum in 2ml, 3ml and 3.5ml tubes which is a pretty handy feature.
Size: 2ml, 3ml and 3.5ml
Ophthalmologist approved? Yes
Key Ingredients:
| BioPeptin Complex | A blend of peptides, lipids, green tea and biotin to promote lash growth |
|---|---|
| Ginseng | Helps to grow strong hairs |
| Amino Acids | Molecules that combine to create proteins, the build up of hair |
Clare testing the RevitaLash Advanced Eyelash Serum
Pros
- Contains Olaplex’s proprietary bond-building technology to promote lash strength and density
- Contains hydrating ingredients, such as hyaluronic acid, to promote nourishment
- Ophthalmologist tested
- Large tube
Cons
- Takes consistent use to see results
- Not specified whether it contains fragrance
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.
Size: 4.4 ml
Ophthalmologist approved? Yes
Key ingredients
| Olaplex Peptide Complex Technology | A patented peptide to boost the lash growth cycle |
|---|---|
| Patented Olaplex Bond Building Technology | Creates a healthy skin barrier for hair to grow |
| Hyaluronic Acid and biotin | Helps to condition for nourished and glossy lashes |
Clare testing the Olaplex Lashbond Building Serum
The Ordinary Multi-Peptide Lash and Brow Serum
Pros
- Affordable
- Easy application
- Lightweight formula that doesn't overwhelm the lashes
- Fragrance-free
Cons
- Takes consistent use to see results
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.
Size: 5ml
Ophthalmologist approved? Yes
Key ingredients
| Myristoyl Pentapeptide-17 | Stimulates keratin production to encourage hair growth |
|---|---|
| Biotinoyl Tripeptide-1 | Strengthens the hair follicle to prevent hair loss |
| Caffeine | Stimulates hair follicles to encourage growth |
Pros
- It's reasonably priced, making it a great choice for Gen Z
- 99% of the ingredients are naturally sourced
- It’s powered by peptides too strengthen and encourage growth
- Humectants keep the lashes conditioned
Cons
- Lashes appear more conditioned after a few weeks, however changes in length takes longer to see results
Gróa is the new Gen Z lash serum to enter the game – and despite such fierce competition, it has quickly raised the ranks into our best eyelash growth serum roundup.
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. My boyfriend has also said how fluffy my natural lashes look, and that’s saying something!
Size: 3ml
Ophthalmologist approved? Yes
Key Ingredients:
| Pea peptide: | Encourages growth from the root |
|---|---|
| Hyaluronic acid: | Hydrates the lashes making them feel softer and more conditioned |
| Green tea extract: | Provides hydration |
| Cica: | Supports and strengthens the lashes |
Clare testing the Gróa Lash Serum
RapidLash Eyelash Enhancing Serum
Pros
- Fragrance-free
- Thin wand makes easy application
- Contains a complex of ingredients, like biotin and peptides, to strengthen and lengthen lashes
Cons
- Takes consistent use to see a noticeable result
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.
Size: 3ml
Ophthalmologist approved? Yes
Key ingredients
| Hexatein 1 Complex | Conditions the lashes to encourage growth |
|---|---|
| Amino acids | Boost protein production, resulting in longer and stronger lashes |
| Pumpkin seed extract | High in vitamins and minerals to improve the glossy appearance of the lashes |
Clare testing the RapidLash Eyelash Enhancing Serum
Augustinus Bader The Eyebrow and Lash Enhancing Serum
Pros
- Results can be seen in as little as two weeks
- Thin wand for application
- Milky formula feels nourishing on the eyelashes
- Fragrance-free
Cons
- £££
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.
Size: 8ml
Ophthalmologist approved? Yes
Key ingredients
| TFC8 technology | Conditions the skin around the lashes, creating the perfect environment for hair to grow |
|---|---|
| Roselle and Safflower Extracts | Prevents irritation around the lash line that may lead to hair loss |
Pros
- Thin brush for precise application
- Contains vitamins and hyaluronic acid to nourish
- Fragrance-free
Cons
- Takes some time to see a difference
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.
Size: 3ml
Ophthalmologist approved? Unknown
Key Specifications:
| Peptides | Helps to stimulate growth, encouraging longer and fuller lashes |
|---|---|
| Biotin | Conditions the lashes to improve their strength |
| Pumpkin Seed Extract | Contributes to the overall strength, health and appearance of the lashes |
Pros
- Results are fast, with loyal use
- It's free from prostaglandins, silicones and parabens
Cons
- The wand is thicker compared to others in this edit, which may make precise application tricky
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.
Size: 4ml
Ophthalmologist approved? Yes
Key ingredients
| Pentapeptide complex | A blend of peptides – short chains of proteins – to stimulate hair growth |
|---|
Pros
- 87% of people noticed thicker, fuller and longer lashes
- Looks after the lashes from root to tip
- Doesn’t contain prostaglandins
Cons
- Some may find the doe-foot applicator too large for precise application
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.
Size: 7.5ml
Ophthalmologist approved? Unknown
Key Ingredients:
| Ginseng Root Extract | Stimulates hair growth |
|---|---|
| Peptides: | Combines biotin‑linked peptides and fatty-acid‑enhanced peptides designed to support keratin production to strengthen lashes. |
Scandinavian Biolabs Bio-Pilixin Eyelash Growth Serum
Pros
- Money-back guarantee
- Easy application roller ball
- Doesn't contain prostaglandin, so great for those with sensitive eyes
Cons
- Some may prefer a brush for closer application to the lash line
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.
Size: 5ml
Ophthalmologist approved? Unknown, but it is dermatologically tested
Key ingredients
| Biotin | Acts as a conditioner to promote healthy lashes |
|---|---|
| Capilla Longra | A natural compound, said to help hair density by preventing hair loss |
| Amino-acid blend | Improves the strength and condition of hair |
How we test eyelash 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.
Why trust Cosmopolitan?
Clare Stephenson is the Senior Beauty Ecommerce Writer for Cosmopolitan, with three years of experience testing all categories of beauty. While she’ll forever obsess over the latest mascara launch to instantly lengthen her lashes, she knows that real results come from a stellar eyelash growth serum to create the natural flutters we all wish for. She’s tested pretty much every serum on the market, from budget to luxury, to bring you the best lash growth serums your money can buy.
Clare Stephenson is the Senior Fashion and Beauty E-commerce Writer for Cosmopolitan, ELLE and Harper’s Bazaar. She has been an e-commerce writer since 2022, creating matter-of-fact reviews and shopping pages filled with her favourite products for every budget and need – whether that’s a glow-giving foundation, a high-tech LED face mask or the perfect wear-with-everything blazer.
Alongside writing, Clare loves to be in front of the camera creating shopping content, putting viral products to the test to see which ones are truly worth the hype. Through her work, she has interviewed leading dermatologists, makeup artists and industry experts to bring readers trusted advice and product recommendations.
Clare has contributed to titles across the Hearst UK portfolio, including Women’s Health, Good Housekeeping, Red and Prima. Prior to joining Hearst, she earned a BA in Multimedia Journalism from Bournemouth University, focusing her studies on magazines and editorial. She later worked as an editorial assistant at Voir Fashion Magazine, covering events including Fashion Week and interviewing notable brand founders.
Outside of work? You can find Clare strolling through London’s Columbia Road Market, pouring her fourth coffee of the day or heading to a Pilates class.
Follow Clare on Instagram @clarefrancesstephenson.
