12 best eyebrow growth serums 2025 that genuinely work, reviewed
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Sick of your sparse brows? Unfortunately, travelling back in time to tell our teenage selves to stop plucking isn't possible, so eyebrow growth serums are our only hope. Whether you're after a defined and laminated look, or more of a fluffy and feathery finish, finding a serum that'll strengthen and stimulate your precious eyebrow strands is well worth doing if you want full brows in time for summer.
"Eyebrow growth serums certainly aren't essential," says Dr Sharon Wong, a hair specialist and consultant dermatologist based in London. “However, they can be a great option for people dealing with eyebrow thinning or loss, provided that the follicles are not scarred or permanently damaged.”
Whether you weren't lucky enough to be blessed with thick brows, or you just used tweezers far too often in your teens, adding an eyebrow growth formula into your routine could make all the difference. Below, you'll find some of our favourites, as well as insights from experts on finding the right formula for you.
SKIP TO FAQs: Do eyebrow growth serums actually work? | How do eyebrow growth serums work? | Which ingredients should I look for in an effective eyebrow growth serum? | How often should I use a brow growth serum? | How long to brow growth serums take to work? | Are there any side effects of using eyebrow growth serums?
Meet the experts:
| Name | Expertise |
|---|---|
| Dr Sharon Wong | Consultant Dermatologist. |
| Dr Geeta Yadav | Dermatologist and founder of FACET Dermatology. |
| Hoda Kiani | Founder of LoveLash. |
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.
- Pros: Reasonably priced; darkens brows; quick results.
- Cons: Runs out very quickly; contains a prostaglandin analogue.
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.
- Key ingredients: Panthenol, green tea extract, and myristoyl pentapeptide-17.
- Recommended use: Once a day.
- Pros: Packed with peptides; amazing reviews; quite a good price.
- Cons: Contains a prostaglandin analogue.
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.
- Key ingredients: Peptide complex, soy, wheat, and ginseng extracts.
- Recommended use: Once every evening.
- Pros: Results within 30 days; enhances shape and colour of brows; amazing reviews.
- Cons: Contains a prostaglandin analogue.
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.
The Ordinary Multi-Peptide Lash and Brow Serum
- Key ingredients: Peptides, panthenol, and camellia sinensis leaf extract.
- Recommended use: Twice daily.
- Pros: Affordable; works for brows and lashes; absorbs quickly.
- Cons: The applicator brush is more suited for lashes.
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.
RevitaBrow Advanced Eyebrow Conditioner
- Key ingredients: BioPeptin Complex®, amino acids, B vitamins, ginseng, swertia japonica, and calendula.
- Recommended use: Use once a day.
- Pros: Boosts shine; makes brow hairs softer; easy to apply.
- Cons: Quite expensive; contains a prostaglandin analogue.
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.
Grande Cosmetics GrandeBROW Brow Enhancing Serum
- Key ingredients: Amino acids, hyaluronic acid, and vitamin E.
- Recommended use: Once a day.
- Pros: Great for thickening; darkens brows; great for bald patches.
- Cons: Expensive upkeep; contains a prostaglandin analogue.
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.
Virtue Flourish Brow Density Booster
- Key ingredients: Red clover extract, pea sprout, microalgae, and tetrapeptide.
- Recommended use: Once a day.
- Pros: Lightweight formula; makes wiry hairs more fluffy; protein-packed formula.
- Cons: Expensive.
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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Olaplex Browbond Building Serum
- Key ingredients: OLAPLEX Peptide Complex Technology™, water based polymer, and Skin-Soothing Complex.
- Recommended use: Use twice daily.
- Pros: Also sculpts; reduces greys; dries quickly.
- Cons: Expensive.
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.
- Key ingredients: Red clover extract and biomimetic peptide, sodium hyaluronate, and castor oil.
- Recommended use: Once a day.
- Pros: Works for brows and lashes; great price; convenient applicator.
- Cons: Nothing of note.
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.
Augustinus Bader The Eyebrow and Lash Enhancing Serum
- Key ingredients: Biotin, roselle, and safflower extracts.
- Recommended use: Twice a day.
- Pros: Works for brows and lashes; truly speeds us growth; no irritation for lashes.
- Cons: Very expensive; packaging is a little messy.
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.
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- Key ingredients: Peptides, biotin, panthenol, and sodium hyaluronate.
- Recommended use: Once every evening.
- Pros: B-Corp certified manufacturer; affordable price; great reviews.
- Cons: Nothing of note.
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.
NYK1 BrowForce Eyebrow Growth Serum
- Key ingredients: Swertia japonica extract, panax ginseng extract, biotin, and vitamin B2.
- Recommended use: Twice a day.
- Pros: Larger size; hypoallergenic formula; high-quality natural ingredients.
- Cons: Nothing of note.
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.
FAQs:
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 eyebrow 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.
How we tested the best eyebrow growth serums
The GLAMOUR team has been actively testing the best eyebrow growth serums for years now. We've reviewed the formulas for a minimum period of 4-6 weeks to log any noticeable results and kept in mind the following:
- Efficacy – how soon did we notice results?
- Reaction – did the formula cause any irritation or watery/red eyes?
- Application – how easy is the application process
- Value for money – does the price tag genuinely match the formula?
Feeling inspired to upgrade your makeup routine? Check out our guides on the best mascaras, best primers and best magnetic false lashes. We can also help you pick the best moisturisers for dry skin, best hyaluronic acid serums and best laser hair removal machines.
