Whether you’re someone who loves lash extensions or you tend to forgo mascara, ensuring your lashes are in top condition is key, especially if you're going sans make-up. Which is where eyelash serums come in. Promising longer, thicker, fuller lashes – without even adding mascara – these serums can work wonders at enhancing that fluttery lash look.
But do they really work, and which formula is best? We’ve done the research so you don’t have to...
Best eyelash growth serums 2025
Olaplex Olaplex Lashbond Building and Enhancing Serum
Read review
How we selected these lash growth serums
We had Chloe Burcham, expert beauty editor and contributor to Women's Health, do a deep dive into the most popular lash growth serums on the market. She researched the best ingredients to look out for in formulas, how exactly lash growth serums work, and how they should best be applied.
What to Read Next
She then tried a few for herself to see which ones worked for her, and asked her beauty industry colleagues which lash growth serums they recommend.
How do eyelash serums work?
Eyelashes, much like the hair on your head, are composed of protein and amino acids. For long, healthy lashes, you need to strengthen and nourish them, which is where lash serums come into play.
Eyelash serums operate in a few different ways. Some formulas contain growth-enhancing ingredients designed to stimulate lash growth. Others include ingredients that nourish and repair lashes, allowing them to naturally grow longer and stronger, thus improving their appearance and overall condition.
How to use an eyelash serum
To incorporate an eyelash serum into your routine, apply it as the final step of your skincare regime. Use it each morning and evening on clean, dry lashes. Some formulas come with a mascara-like wand for easy application, while others have a fine brush to paint the formula onto the lash line.
Best eyelash growth serums for stronger lashes in 2025
1/ Uklash Eyelash Enhancing Serum
Pros
- Most start to see results within 25 days
- One bottle lasts three months
- Money back guarantee if you don't see results
Cons
- Honestly, none!
| Key ingredients | Biotin peptide, vitamin B5, myristoyl pentapeptide-17 & green tea extract |
|---|
Uklash eyelash enhancer serum is a powerful serum that targets brittle, short and sparse lashes. It's fortified with natural vitamins, extracts and peptides to nourish and infuse your eyelashes with what they need for longer, fuller and voluminous looking in 25 days.
2/ The Ordinary Multi-Peptide Lash and Brow Serum
The Ordinary Multi-Peptide Lash and Brow Serum
Pros
- Budget-friendly
- Can be used on lashes and brows
Cons
- Mixed results
| Key ingredients | Four peptide complex, caffeine |
|---|
The Ordinary Multi-Peptide Lash and Brow Serum is powered by exclusive technologies that help to promote hair density and length.
It works to nourish your natural lashes to create the illusion of enviably volumised lashes, while simultaneously targeting hairs to promote the look of fuller lengths.
3/ Olaplex Lashbond Building and Enhancing Serum
Pros
- Highly concentrated formula
- Clinically tested
- Most users saw results within a month
Cons
- Expensive
- Has to be applied twice a day for full results
| Key ingredients | Peptide Complex Technology and hyaluronic acid |
|---|
Encourage thicker, fuller-looking eyelashes with the Olaplex LashBond Building Serum. Powered by exclusive Bond Building Technology and a new Peptide Complex Technology, the formula nourishes and hydrates to help reduce the feel and appearance of dry, brittle lashes. The highly-concentrated formula works morning and night to condition the eyelashes, while encouraging the illusion of a multiplied effect.
4/ RevitaLash Advanced Eyelash Serum
Pros
- Works quickly
- Can be used on lashes and brows
- Encourages growth while enhancing health of existing lashes
Cons
- Expensive
- Might be too strong for sensitive eyes
- Has to used twice a day for full results
| Key ingredients | BioPeptin Complex: mix of peptides and botanicals |
|---|
Conditioning, revitalising and beautifying, RevitaLash Advanced (2ml) enhances the look of luxurious eyelashes with dramatic (but believable) effect.
Starring a proprietary blend of scientifically-advanced technology and natural botanicals, this daily treatment promotes strand strength, resilience and suppleness, minimising likelihood of breakage, and addressing the visual signs of eyelash ageing, stress and fragility.
High impact BioPeptin Complex (AKA a cocktail of peptides and botanicals) saturates each lash with moisture, while the non-drip, anti-microbial formula remains exactly where it's meant to.
5/ Sweed Eyelash Growth Serum
Pros
- Powerful ingredients list
- Also suitable for brows
- No prostaglandin
Cons
- Mixed results
- May be too harsh for sensitive eyes
| Key ingredients | Pumpkin seed extract, panthenol, hyaluronic acid, myristoyl pentapeptide-17, keratin |
|---|
Get longer, stronger lashes with the help of Sweed Eyelash Growth Serum, an eyelash serum that helps to extend the growth phase of each lash.
Formulated with an effective blend of ingredients, this serum contains pumpkin seed extract to condition and nourish the lashes and biotin to improve the lashes’ health and strength. It also contains panthenol to help strengthen lashes and hyaluronic acid to nourish and hydrate. In addition, myristoyl pentapeptide-17 works to enhance lash length, thickness and fullness, while keratin helps to improve the health of the eyelashes.
6/ Beauty Pie Lash Fuel XL Super-Advanced Peptide Serum
Pros
- Suitable for sensitive eyes
- Clinically proven to show results in four weeks
- Plant-based
Cons
- Mixed reviews
| Key ingredients | Redensyl, Probiometa, peptide complex, ginseng root extract, panthenol |
|---|
Clinically proven to be suitable for sensitive eyes and contact-wearers. Formulated with ‘Redensyl™’ – the same active Beauty Pie use in their bestselling anti-hair-loss spray, this eyelash serum also features a Korean Kimichi-derived postbiotic for the ultimate soothing and conditioning effect. The benefit? Astonishingly thicker, more volumised looking lashes.
7/ Glow For It Lash Growth Serum
Pros
- Derived from natural ingredients
- Mid-range price point
- Ideal for sensitive eyes
- Hundreds of positive reviews
Cons
- Can take a while for results to show
| Key ingredients | Clover flower extract, chamomile extract, green tea extract |
|---|
Lengthen and strengthen your lashes with the Glow For It Lash Growth Serum. With a new and improved formula, this scientifically proven lash growth serum filled with natural ingredients (that are ethically and sustainably sourced) enhances the appearance of your lashes in as little as 14 days. Rich with multi-peptides, this serum provides them with essential nutrients and vitamins to stimulate the hair follicle and promote growth for long, strong, and healthy lashes.
8/ Kosas GrowPotion Fluffy Lash + Brow Boosting Serum
Pros
- Primarily natural formula
- Safe for sensitive eyes
- Works on brows and lashes
- Prostaglandin-free
Cons
- Takes a while to see results
- Can leave a glue-like texture behind
| Key ingredients | Keratin, hyaluronic acid, peptides |
|---|
A brow-and-lash-boosting serum powered by peptides and vegan keratin to accelerate the appearance of fuller, feathery brows and longer, thicker lashes.
Featuring a unique two-in-one applicator to maximize both your brows and lashes, this serum creates the perfect environment for hair to thrive with a clean, 97 percent naturally derived, hyaluronic acid-powered formula with vegan keratin and a trio of peptides. It is also ophthalmologist tested, safe for sensitive eyes, and prostaglandin-free. Use it consistently on a daily basis for 12 weeks to see best results.
What are the best ingredients in lash serums?
Eyelash serums often share similar formulas but knowing the standout ingredients can help you choose the right product.
Biotin, a key B-vitamin found in many hair, skin, and nail supplements, is a common ingredient in eyelash serums. It strengthens keratin, the primary protein that makes up your hair and lashes.
Castor oil is another frequent component in lash serums. This nourishing ingredient moisturises lashes, making them appear thicker and fuller. However, beware of DIY castor oil remedies; lash serums undergo rigorous testing to ensure they are safe and effective, whereas unregulated, pure oil near your eyes is risky.
Peptides are also commonly found in lash serums. Believed to stimulate hair growth at the follicle, peptides can increase hair flexibility, reducing breakage and promoting longer, stronger lashes.
How long do eyelash serums take to work?
Consistency is key when it comes to using eyelash serums, but generally speaking, you should start seeing noticeable results within four to six weeks of consistent use. During this period, the active ingredients in the serum work to nourish and strengthen the lashes, promote growth, and improve overall lash health. For some, initial improvements in lash length and thickness may be seen as early as two weeks, while for others, it might take up to eight weeks to observe significant changes. Patience and regular application are key to achieving the desired results with eyelash serums.
Are eyelash serums safe?
When used correctly (always read the instructions!), eyelash serums are safe and easy to use. As with any cosmetic product, some individuals might experience allergies so if you notice any tingling, itching, or redness, stop using the serum and consult your doctor.
More beauty content…
- Maya Jama on her skincare routine, social media habits and nurturing friendship
- These are the 11 summer perfumes that celebrities love
- These Zara perfumes will remind you of your favourite luxury fragrances
Cut through the noise and get practical, expert advice, home workouts, easy nutrition and more direct to your inbox. Sign up to the WOMEN'S HEALTH NEWSLETTER
Read now: 'I Trained With...Emma Raducanu's Former Coach'
