13 best eyebrow growth serums 2026 that genuinely work, reviewed
Sick of your sparse brows? Same. And as much as we’d love to travel back in time to tell our teenage selves to step away from the tweezers, we can’t – so here we are, relying on eyebrow growth serums to undo the damage. Whether you’re chasing that slick laminated look or prefer a softer, fluffier finish, a good brow serum can help strengthen hairs and encourage growth where you need it most. And trust us, it’s well worth adding to your routine if fuller, healthier brows are the goal.
“Eyebrow growth serums certainly aren’t essential,” says Dr Sharon Wong, consultant dermatologist and hair specialist. “However, they can be a great option for people dealing with eyebrow thinning or loss – as long as the follicles aren’t scarred or permanently damaged. When the hair follicle is still active, serums can help support the regrowth process.”
When asking UKLASH Founder Nina Pourian what ingredients to look for in a brow serum, she told Glamour: “Key ingredients in brow serums like UKBROW include peptides such as Myristoyl Pentapeptide-17 to stimulate keratin growth, Biotin for hair strength, Vitamin B5 for moisture retention, and natural extracts like Green Tea and Castor Oil to protect and nourish follicles. These ingredients work together to support fuller, healthier brow growth.”
So, whether you’ve always had fine brows or went a little too hard with the tweezers (guilty), the right eyebrow growth serum can make all the difference. Below, you’ll find the ones we’ve tested, loved, and actually seen results from – plus expert advice to help you choose the best formula for your brows.
And if you’re in full growth mode? Don’t stop at brows – check out our guides to the best eyelash serums, best hair growth serums, and top LED devices for hair growth too.
Meet the experts:
| Name | Expertise |
|---|---|
| Dr Sharon Wong | Consultant Dermatologist. |
| Dr Geeta Yadav | Dermatologist and founder of FACET Dermatology. |
| Hoda Kiani | Founder of LoveLash. |
| Nina Pourian | Founder of UKLASH. |
How I tested eyebrow growth serums:
Myself and a few other Glamour team members have been testing the best eyebrow growth serums first-hand for the past two years, to determine which ones actually makes a difference (and which are just fancy tubes).
When a new product lands on the Glamour beauty desk, an editor who isn't currently testing a serum (we need to be able to distinguish which serum had what impacts) takes it home and begins their 30 days course of testing. We'll look at the ingredients list to spot those we know make a difference to growth, then score against how gentle it is on the skin, smell, how easy it is to apply, consistency and the effects after a full month. We'll take before and after pictrues to track our progress.
Personally, I’ve always struggled with sparse brows, and am constantly reaching for my favourite REFY brow pencil to fill them in. But, since introducing a serum into my routine each night a few months ago (along with my UKLash serum which has done wonders), my pencil has taken a bit of a back seat, and I’ve definitely noticed a difference when it comes to thickness. If you’re wondering whether it’s worth adding a brow serum to your routine, this guide should help you find one that actually works.
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Why you can trust me:
I've literally been paid to test new beauty products for over five years now, which means I've tested hundreds of products in my career. Eyebrow growth serums have been getting a lot of hype thanks to cult brands like UKLash going TikTok-crazy, so I wanted to use my experience to do the testing legwork so that you don't have to. I've attended press days, tested countless new launches, and spoken to brow experts and dermatologists to understand why you’d even need a brow serum in the first place. You can trust that this edit is the culmination of years' worth of work and expertise. TL;DR? If your brows are a bit sparse - whether that’s from over-plucking or just genetics - a good serum can really help encourage regrowth and make them look fuller over time.
Shop the best eyebrow growth serums to give your eyebrows the boost they deserve.
RapidBrow Eyebrow Enhancing Serum
- Key ingredients: Hexatein 2 Complex.
- Recommended use: Twice daily.
Why we love it: With consistent use of this serum over an eight-week period, you can expect to achieve far more thick and full brows - with hairs even sprouting from long-standing bald patches. Essentially, it's a must-have for restoring over-plucked brows to their former glory.
Designed with boosting brow density in mind, it's formulated with the impressive Hexatein® 2 Complex — which boasts a perfectly balanced mix of potent polypeptides and biotin, nourishing panthenol, and revolutionary Apple Fruit Cell and Pumpkin Seed extracts.
Pros & ConsPros- Reasonably priced
- Darkens brows
- Quick results
Cons- Runs out very quickly
- Contains a prostaglandin analogue
UKLASH Complex Peptide Eyebrow Growth Serum
- Key ingredients: Six peptides including Pea Peptides, Hexapeptide-8, and Copper Tripeptide-1.
- Recommended use: Once daily.
Why we love it: I’ve been using this UKLASH serum for a while now and, honestly, I’m seriously impressed. It’s the first in the world to pack in six different peptides (which is more than any other on the market), and they really do the heavy lifting when it comes to strengthening and thickening brows.
The texture is light, it doesn’t irritate, and applying it takes seconds - so there’s no excuse to skip it. After a few weeks, I started noticing those sparse areas looking fuller and my brows feeling healthier overall. If you want stronger, bolder brows without faffing around with salon treatments, this is the perfect place to start.
Pros & ConsPros- World-first six-peptide formula
- Helps brows look fuller and stronger
- Vegan and cruelty-free
Cons- You need to stick with it for results - it’s not overnight.
RevitaBrow Advanced Eyebrow Conditioner
- Key ingredients: BioPeptin Complex®, amino acids, B vitamins, ginseng, swertia japonica, and calendula.
- Recommended use: Use once a day.
Why we love it: If you're looking for a brow-enhancing and moisturising serum that can elevate the look of over-plucked and sparse brows, this is it. With a blend of peptides and botanicals, this formula is great for revitalising and strengthening stressed strands, and will leave you with far fuller brows afterwards.
It's also great for men who are experiencing hair loss and want to improve the appearance of sideburns, moustaches and beards.
Pros & ConsPros- Boosts shine
- Makes brow hairs softer
- Easy to apply
Cons- Quite expensive
- Contains a prostaglandin analogue
- Key ingredients: Red clover extract and biomimetic peptide, sodium hyaluronate, and castor oil.
- Recommended use: Once a day.
Why we love it: Made with 98% natural ingredients, this nutrient-growth serum works to awaken dormant hair roots, and leave you with fuller lashes and brows in just 4-6 weeks. It's also scent-free, and comes with a handy applicator wand that doubles as an eyebrow spoolie — what's not to love?
Featuring an evidence-backed formula of active ingredients, red clover extract and biomimetic peptide work together to reduce inflammation, inhibit DHT (which is a hormone responsible for hair loss in women), and stimulate collagen production to encourage growth. Meanwhile, sodium hyaluronate and castor oil make the hairs look plumper, thicker, and glossier.
Pros & ConsPros- Works for brows and lashes
- Affordable
- Easy to use applicator
Cons- Nothing of note
Augustinus Bader The Eyebrow and Lash Enhancing Serum
- Key ingredients: Biotin, roselle, and safflower extracts.
- Recommended use: Twice a day.
Why we love it: Don't let the price tag scare you off – Augustinus Bader is one of the best premium beauty brands around. And best of all, this luxe serum is suitable for use on both the lashes and brows.
Alongisde biotin, this eyelash serum features a hyaluronic acid complex, peptide-rich turmeric, and rejuvenating roselle and safflower extracts. Together, these ingredients work to revitalise your hair follicles, and support natural hair growth.
Save when you shop for the best eyebrow growth serums with our Sephora discount codes.
Pros & ConsPros- Works for brows and lashes
- Truly speeds us growth
- No irritation for lashes
Cons- Very expensive
- Key ingredients: Panthenol, green tea extract, and myristoyl pentapeptide-17.
- Recommended use: Once a day.
Why we love it: After the incredible success of their original eyelash serum, it's not at all surprising that this eyebrow version is proving just as popular. Featuring a unique high-performance formula that stimulates natural hair growth, you can expect healthier, thicker, and fuller-looking brows.
The hero ingredient? it has to be myristoyl pentapeptide-17 — an amino acid peptide that encourages keratin growth, and strengthens your brow hairs — leading to visible results in as little as 25 days.
Pros & ConsPros- Packed with peptides
- Amazing reviews
- Quite a good price
Cons- Contains a prostaglandin analogue
The Ordinary Multi-Peptide Lash and Brow Serum
- Key ingredients: Peptides, panthenol, and camellia sinensis leaf extract.
- Recommended use: Twice daily.
Why we love it: Best known for their simple, effective, and super affordable skincare and beauty products, fans of The Ordinary will be pleased to hear that this 2-in-1 serum lives up to the hype. Thanks to a collection of exclusive technologies, it conditions, maximises volume, and also promotes hair density — and it does exactly the same thing for your lashes, too.
Is this serum going to leave you with some serious growth? No. However, it'll moisturise and condition each individual hair — ensuring they're in optimum health, which is key for encouraging growth.
Pros & ConsPros- Affordable
- Works for brows and lashes
- Absorbs quickly
Cons- The applicator brush is more suited for lashes
Olaplex Browbond Building Serum
- Key ingredients: OLAPLEX Peptide Complex Technology™, water based polymer, and Skin-Soothing Complex.
- Recommended use: Use twice daily.
Why we love it: As well as working to build brow density and definition in as little as four weeks, this clever formula's proprietary multi-peptide blend also works hard to minimise the appearance of any new greys. And the nourishing Skin Soothing Complex leaves the hairs super soft and smooth.
But best of all, it also doubles as a lightly sculpting brow gel — and it can be used to softly shape and sculpt the brows for all-day hold, without leaving behind any stiffness or flaking. Plus, the microbristle doe-foot applicator makes precise application nice and easy.
Pros & ConsPros- Sculpts
- Reduces greys
- Dries quickly
Cons- Expensive
- Key ingredients: Peptides, biotin, panthenol, and sodium hyaluronate.
- Recommended use: Once every evening.
Why we love it: This biotin and peptide-powered formulation deeply stimulates the hair follicle for natural growth, while botanicals like chamomile and camellia sinensis leaf extract help soothe and calm the area. Meanwhile, the antioxidant properties of green tea extract shield the hair from environmental damage.
Plus, the formula is completely cruelty-free and vegan — and the serum itself is made sustainably in the UK. Just apply it every night before bed, and look forward to healthier and fuller brows in as little as 14 days.
Pros & ConsPros- B-Corp certified manufacturer
- Affordable price
- Great reviews
Cons- Nothing of note
- Key ingredients: Peptide complex, soy, wheat, and ginseng extracts.
- Recommended use: Once every evening.
Why we love it: If (like us) you never miss a Molly-Mae vlog, you'll know that she's been debating getting microblading for the past year or so to deal with her thinning brows. However, in recent weeks, she's been sporting much fuller and thicker brows — and it turns out that this serum is the product responsible for the sudden change.
In as little as a month, this best-selling serum works over-time to restore and sculpt your arches, while also strengthening each strand so that they're less prone to breakage. Expect salon-worthy brows that appear instantly darker thanks to their increased density.
Pros & ConsPros- Results within 30 days
- Enhances shape and colour of brows
Cons- Contains a prostaglandin analogue
Grande Cosmetics GrandeBROW Brow Enhancing Serum
- Key ingredients: Amino acids, hyaluronic acid, and vitamin E.
- Recommended use: Once a day.
Why we love it: Infused with fortifying amino acids, hydrating hyaluronic acid, and moisturising vitamin E, this serum helps to promote the appearance of naturally fuller and bolder looking brows — while also nourishing the hair follicle to encourage growth.
The antidote to sparseness and tail-less brows, this serum promises results within 6-8 weeks — but most reviewers say you start to notice a difference after just one month of consistent use.
Pros & ConsPros- Great for thickening
- Darkens brows
- Great for bald patches
Cons- Expensive upkeep
- Contains a prostaglandin analogue
Virtue Flourish Brow Density Booster
- Key ingredients: Red clover extract, pea sprout, microalgae, and tetrapeptide.
- Recommended use: Once a day.
Why we love it: Virtue is one of our favourite haircare brands for stressed-out and damaged strands — so we were already confident that this brow serum would be impressive. Crucially, it's infused with the brand's famous Alpha Keratin 60ku®, which is an all-natural keratin protein that's been clinically proven to be able to weave together broken keratin strands, and therefore leave hair far more strong and shiny.
Packed with protein, the formula also features tetrapeptide — which is made up of amino acids — and a blend of nourishing plant-based extracts. Approved by dermatologists, the serum has been proven to gently nourish the fibres so that they're stronger and far less brittle, and also stimulate healthy re-growth.
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Pros & ConsPros- Lightweight formula
- Protein-packed formula
Cons- Expensive
NYK1 BrowForce Eyebrow Growth Serum
- Key ingredients: Swertia japonica extract, panax ginseng extract, biotin, and vitamin B2.
- Recommended use: Twice a day.
Why we love it: Designed to leave you with brow hairs that are twice as thick and long in just 6-8 weeks, this serum has been made with restoring natural brows in mind. Great for bald patches and too-thin tails, it's currently the most popular option on Amazon — and it's earned itself thousands of 5* reviews.
Best of all, while most brow serums come in tiny little thin tubes, this one is considerably larger in size — so you'll definitely have enough serum to see you through at least the next four months.
Pros & ConsPros- Larger size
- Hypoallergenic formula
- Thousands of 5* reviews
Cons- Some reviews bring up sensitivity
Do eyebrow growth serums actually work?
In short, yes. Much like eyelash growth serums, eyebrow growth serums work by conditioning brow hairs and stimulating healthy hair growth. They're certainly not an essential product — so whether you decide to invest in one should be down to your own personal brow goals and preferences.
“If you've experienced eyebrow thinning due to factors like over-plucking, ageing, or medical conditions — or you simply desire fuller and more defined eyebrows – an eyebrow growth serum may be worth considering," adds Hoda Kiani, founder of LoveLash.
How do eyebrow growth serums work?
“They contain a range of ingredients which can be divided into two groups – actives that actually regrow hair and are typically medicines or drugs, and ingredients which condition and thicken existing hair, or a combination of the two,” explains Dr Sharon, a hair specialist and consultant dermatologist based in London. “Eyebrow serums therefore work by increasing hair growth, and making the most of the hair that is already there,” she adds.
Which ingredients should I look for in an effective eyebrow growth serum?
In terms of what ingredients to look for, eyebrow growth serums will commonly include keratin, vitamins (such as biotin and panthenol), botanical oils (like avocado, rosemary and castor), vitamin E and peptides, which are also found in lash serums.
“For growth, look for medicines like minoxidil and bimatoprost,” says Dr Sharon. Geeta Yadav, MD, a board-certified dermatologist and founder of Facet Dermatology, concurs. Keep an eye out for “prostaglandin or prostaglandin analog, like bimatoprost," she says. "Or isopropyl cloprostenate, like you’d find in GrandeLash,” she adds. For conditioning, Dr Sharon recommends “biotin, vitamin E and pantothenic acid,” and for strengthening she rates amino acids and peptides.
How often should I use a brow growth serum?
For best results, you'll typically need to use an eyebrow growth serum twice a day — ideally once in the morning, and once in the evening. Apply the serum to clean and dry eyebrows, and allow it fully absorb before continuing with your regular skincare routine. “This ensures that the active ingredients penetrate the skin and follicles to encourage thicker, stronger eyebrow hairs,” Hoda adds.
How long do brow growth serums take to work?
Typically, you should start noticing visible results as soon as you're 3-4 weeks into using it on a daily and consistent basis. That said, the most impressive results should be visible after a minimum period of 8 weeks.
“Unlike scalp hair, the growth cycle of brow hair is shorter — but it can still take up to 3 months to work and consistency is key,” says Dr Sharon. As for maintaining results, “if the product works you would need to continue using it as maintenance,” she adds.
Are there any side effects of using eyebrow growth serums?
Those with sensitive skin might be more likely to experience common side effects like eye itchiness and redness, and eyelid discolouration — and in some cases, even eyelid drooping and changes of eye colour. This is typically caused by prostaglandin analogs, which are popular ingredients for stimulating hair growth that are known to sometimes cause irritation. So, it might be worth looking for a formula that doesn't contain them.
If you do experience an adverse reaction, stop using the product immediately, and seek medical help. And before you bring that wand anywhere near your eyes, it's definitely worth doing a patch test on your arm or neck, and seeing if any irritation occurs over a 24-hour period.
