14 Lash Growth Serums That Actually Live up to Their Claims

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Best Lash Growth Serum

Byrdie / Chloe Jeong

The seemingly universal desire for longer, more lush lashes is nothing new. People first started applying, wait for it, beads of wax as an early form of mascara in 1910; there’s also evidence that the ancient Egyptians attempted to emphasize lashes as far back as 4,000 BC. The point is, it’s safe to say that people always have, and always will, want longer lashes.

There are of course now plenty of mascaras out there that can deliver such as well as the option of falsies and eyelash extensions. But if those just aren’t doing it for you, you may want to consider a lash growth serum. To be fair, calling them ‘growth’ serums is a little misleading. There are very few ingredients that will stimulate new growth—bimatoprost, the active ingredient in prescription-only Latisse, and prostaglandins are two common ones. While some OTC products used to contain these (and as such had impressive results), a recent crackdown by the FDA has caused many brands to reformulate without them.

But that doesn’t mean that the various options out there are ineffective. Most rely on a long list of moisturizing ingredients and/or follicle-stimulating peptides to leave your lashes stronger and more conditioned—and subsequently looking darker and more dramatic. They’re ideal whether you simply want your lashes to start to pop or are trying to rehab them after they’ve taken a beating.

There are plenty of products out there that promise longer, thicker, and fuller lashes, but to narrow down the list, we put one particular fan-favorite to the test (hint: it’s worth the hype). Our tester used this serum for five weeks, taking note of how well the product worked as well as any side effects. Our team combined these results with our own research of other top-rated products and tapped NYC-based lash expert Jas Imani for her tried-and-true recommendations.

Keep reading for the best lash growth serums on the market.

Our Top Picks
This award-winning lash serum is in a league of its own thanks to a hard-hitting blend of vitamins, antioxidants, and amino acids.
It's made with a proprietary blend of botanically derived ingredients to thicken and lengthen lashes without irritation.
Finally, an affordable lash serum that actually works to grow strong and healthy lashes.
This eyelash conditioner delivers on strengthening lashes to prevent breakage, loss, and fullness.
This pick makes you feel good about putting a chemical-free formula near your eye to strengthen lashes.
This pick doesn't contain any harsh chemicals, great for clean beauty enthusiasts.
Best for Sensitive Eyes:
LiLash Purified Eyelash Serum at Amazon
Grow long and thick eyelashes without irritating sensitive eyes with this physician-developed serum.
This serum boasts the ability to strengthen and lengthen lashes faster than other alternatives.
Improve the condition of your lashes and protect them from damage with this serum.
A blend of good-for-hair ingredients comes together in this serum to protect your lashes and promote growth.

Best Overall: Grande Cosmetics GrandeLASH-MD Lash Enhancing Serum

Grande Cosmetics GrandeLASH-MD Lash Enhancing Serum
What We Like
  • You see results within six weeks

  • Available in a trial size

What We Don’t Like
  • Reviewers mention irritation

A fan-favorite with a long list of devoted fans, both Imani and Byrdie Email Editor Karli Bendlin rave about this pick, with Imani calling it, “tried and true.” A combo of vitamins, antioxidants, and amino acids works to leave lashes longer and thicker. Skeptical? Try the trial size, a six-week supply that delivers initial results. (The standard size contains three months' worth, the recommended time to see full results.)

Active Ingredients: L-Proline, hyaluronic acid, glycosaminoglycans | Benefits: Longer, thicker-looking lashes | Application Method: Brush | Size: 0.07 ounces

grande cosmetics grandeLASH md lash enhancing serum

 Byrdie / Ashley Rebecca

What Our Testers Say

"I've continued to use the serum as directed every single day and am almost at the 90-day mark, and my lashes have grown very full, thick, and long." — Ashley Rebecca, Product Tester

Best Overall, Runner-Up: Pronexa Hairgenics Lavish Lash Serum by Hairgenics

Pronexa Hairgenics Lavish Lash Serum by Hairgenics
What We Like
  • Dermatologist-tested

  • Can be used on lashes and brows

What We Don’t Like
  • Takes a long time to work

Biotin, castor oil, and peptides are the stars of the show in this multi-tasking serum, which has the added benefit of working well on both brows and lashes. It’s dermatologist-tested, vegan, and cruelty-free. Use it daily for at least two months for the best results.

Active Ingredients: Biotin, castor oil, peptides | Benefits: Longer, thicker-looking lashes | Application Method: Brush | Size: 0.10 ounces

Best Budget: InstaNatural Eyelash Enhancing Serum

Instanatural Eyelash Enhancing Serum
What We Like
  • Affordable

  • Vegan and cruelty-free

What We Don’t Like
  • Must use twice daily for best results

Lash serums can be pricey and understandably not a category where people are immediately ready to shell out the big bucks. That’s largely why we appreciate this wallet-friendly version. It claims to promote a hair growth cycle so that your lashes can both get longer and thicker with continued use. And it’s vegan and cruelty-free, too

Active Ingredients: Biotin, hyaluronic acid, panthenol | Benefits: Promotes healthier lash growth cycle | Application Method: Brush | Size: 0.35 ounces

Best Strengthening: RevitaLash Advanced Eyelash Conditioner

revitalash eyelash conditioner
What We Like
  • Non-irritating

  • Helps strengthen lashes

What We Don’t Like
  • Expensive

You use a conditioner for the hair on your head, and your lashes are no different. True to the name, this one delivers plenty of conditioning benefits, while also preventing breaking and brittleness, keeping them soft, supple, and strong. In fact, in a six-week consumer study by the brand, 98% of participants said their lashes were stronger and looked better overall.

Active Ingredients: Peptides, botanicals | Benefits: Conditions lashes | Application Method: Brush | Size: 0.067 ounces

Best Natural: LashFood Phyto-Medic Eyelash Enhancing Serum

LashFood Phyto-Medic Eyelash Enhancing System
What We Like
  • Clean and natural

  • Helps strengthen lashes

What We Don’t Like
  • Takes a long time to work

Those looking for a cleaner option will appreciate that this choice is free of a litany of harmful chemicals, so much so that it’s even Ecocert certified. It relies on medicinal herbs to reinforce lashes, plus strengthening soy protein, as well as soothing lavender water to minimize irritation. It’s another one of Imani’s go-to's. “You need to be patient because it works slowly, but this is a lash serum I’d recommend for everyone since it’s so nutrient-rich. I’ve seen it make lashes thicker,” she tells us.

Active Ingredients: Arginine, soy protein | Benefits: Strengthens lashes, makes them look longer and thicker | Application Method: Brush | Size: 0.10 ounces

Best Natural, Runner-Up: Maya Chia Power Fol Lash and Brow Multi-Correctional Growth Serum

Power Fol Lash and Brow Multi-Correctional Growth Serum
What We Like
  • Can double as a primer

  • Can be used on lashes and brows

What We Don’t Like
  • Expensive

This newbie is chock-full of ingredients that do great things not only for lashes but also for brows, too. (It’s a dual-ended tube with a brush for lashes on one side and a spoolie for brows on the other.) We’re talking about a peptide complex that consists of four different peptides to lengthen, thicken, strengthen, and condition lashes, as well as ingredients such as ginseng that help to minimize hair loss. But what it doesn’t contain is any questionable chemicals, a choice pick for anyone looking to clean up their beauty routine.

Active Ingredients: Peptide complex, panthenol, chia, rice protein | Benefits: Helps promote hair growth | Application Method: Brush and spoolie | Size: 0.2 ounces

Best for Sensitive Eyes: LiLash Purified Eyelash Serum

LiLash Purified Eyelash Serum
What We Like
  • Gentle

  • Ophthalmologist-tested

What We Don’t Like
  • Takes a long time to work

Irritation around the eyes is the most common potential side effect with any type of these serums. If your skin and eyes are on the sensitive side, consider this one. It’s physician-developed and ophthalmologist-tested to be non-irritating on sensitive eyes (and even okay for contact lens wearers.) Satisfied shoppers—it consistently pulls in top rankings—agree, repeatedly noting that it works without irritating.

Active Ingredients: Peptides, amino acids | Benefits: Makes lashes look longer and thicker | Application Method: Brush | Size: 0.067 ounces

Best Fast-Acting: Borboleta Lash Serum

Borboleta Lash Serum
What We Like
  • You see results within four weeks

  • Clinically-tested

What We Don’t Like
  • Expensive

As a general rule of thumb, you’ll have to use any type of lash serum (or brow serum, for that matter) diligently for a few months if you want to see results. In other words, they’re not a quick fix. That being said, this one works faster than others. “This is the one I’m currently using, and I’ve seen major growth within just a few weeks,” says Imani. According to the brand, you’ll see the maximum results in just eight weeks, much faster than the claims of many other comparable products.

Active Ingredients: Biotin, keratin, peptides | Benefits: Makes lashes look longer and thicker | Application Method: Brush | Size: 0.010 ounces

Best Protective: neuLASH Lash Enhancing Serum

Skin Research Laboratories NeuLASH Lash Enhancing Serum
What We Like
  • Great for damaged or brittle lashes

  • Larger size than other options

What We Don’t Like
  • Expensive

If you want to both improve the condition of your current lashes and help protect them from future damage, swipe on this serum. Pumpkin seed extract makes for fuller-looking, more voluminous lashes (makes sense, given that pumpkin seed oil may be helpful for female pattern hair loss), and it also contains peptides and sodium hyaluronate to protect and strengthen them. It’s an especially good choice if your lashes are sparse or brittle.

Active Ingredients: Pumpkin seed extract, peptides | Benefits: Makes lashes look fuller, protects and strengthens | Application Method: Brush | Size: 0.2 ounces

Best Protective, Runner-Up: VIVI Naturals Sagano Lash & Brow Serum

VIVI Naturals Sagano Lash & Brow Serum
What We Like
  • Great for damaged or brittle lashes

  • Clean and natural

  • Sustainable packaging

What We Don’t Like
  • Expensive

This is another great pick for anyone whose lashes require a little extra TLC from the outset. The star ingredient is a reishi mushroom extract, though it also contains many of the ingredients found in other formulas (peptides, biotin) to promote hair growth, as well as maintain the color vibrancy of your lashes, a nice benefit for the more mature crowd who may be noticing some color loss as well.

Active Ingredients: Reishi mushroom extract, biotin | Benefits: Nourishes and strengthens lashes, reduces breakage | Application Method: Brush | Size: 0.10 ounces

Best Splurge: Dr. Lara Devgan Scientific Beauty Platinum Long Lash Serum

Dr. Lara Devgan Scientific Beauty Platinum Long Lash Serum
What We Like
  • Clinically-tested

  • You see results within 14 days

What We Don’t Like
  • Expensive

This one is a bit on the pricier side, but Imani has personally used this option and can vouch for the legit results: “My lashes grew out longer after about three months,” she says. Vitamin B5 conditions the hairs, while peptides and clover extract supports the follicle. It’s a fan-fave on Sephora, too, with reviewers raving about how well it works and with minimal irritation at that.

Active Ingredients: Vitamin B5, phyto peptides | Benefits: Makes lashes look fuller and longer | Application Method: Brush | Size: 0.17 ounces

Best Multitasker: RapidLash Eyelash Enhancing Serum

RapidLash Eyelash Enhancing Serum
What We Like
  • Delivers several different benefits

  • Can be used on lashes and brows

What We Don’t Like
  • Reviewers say it’s thick and dries slow

The proprietary active ingredient complex in this formula relies on a laundry list of good-for-your lashes ingredients. We’re talking strengthening peptides, growth-supporting biotin, conditioning panthenol, vitamin-rich pumpkin seed extract, and soybean oil to make your lashes look extra lush. Plus, it works equally well on brows, so you get even more bang for your buck.

Active Ingredients: Pumpkin seed extract, peptides, biotin | Benefits: Makes lashes look fuller, conditions lashes | Application Method: Brush | Size: 0.10 ounces

Best for Extensions: Envious Lashes Lash Conditioning Serum

Envious Lashes Lash Conditioning Serum
What We Like
  • Developed by a lash expert

  • Can be used with extensions

What We Don’t Like
  • Spoolie method can make application difficult

This serum was created by lash expert Clementina Richardson, whom beauty editors and celebs alike flock to for all kinds of lash needs. She’s known for her amazing extensions, so it’s no surprise that this formula is meant to be used with extensions. The botanical-based formula will keep your natural hair strong and healthy, minimizing the wear and tear extensions can admittedly have. We also appreciate the mascara wand-like applicator, which makes it easy to coat every lash.

Active Ingredients: Botanical extracts | Benefits: Keeps lashes healthy | Application Method: Spoolie | Size: 0.27 ounces

Best for Volume: Vegamour VegaLASH Volumizing Serum

Vegamour VegaLASH Volumizing Serum
What We Like
  • Vegan and cruelty-free

  • Can be used with extensions

  • Available via a convenient subscription model

What We Don’t Like
  • Expensive

Sure, most often it’s the extra lash length that we’re after, but for those who are satisfied with the length of their fringe and just want it to be a little fuller, this is a top pick. The 100% vegan, cruelty-free formula relies on botanical extracts. In clinical studies conducted by the brand, participants saw a 94% increase in density and volume after four months of use.

Active Ingredients: Mung bean, red clover | Benefits: Makes lashes appear fuller and thicker | Application Method: Brush | Size: 0.10 ounces

Final Verdict

If you’re going to try any lash serum on this list, make it the Grande Cosmetics GrandeLASH-MD Lash Enhancing Serum. This fan-favorite is packed with vitamins, antioxidants, and amino acids that leave lashes longer and thicker—and trust, it really works. It’s also pretty affordable to boot. Another top choice is the Pronexa Hairgenics Lavish Lash Serum, which is infused with biotin, castor oil, and peptides to help your lashes grow healthy and thick. Bonus? It can be used on the brows, too. And finally, the key to maintaining long, luscious lashes is keeping them healthy, which is why we love the RevitaLash Advanced Eyelash Conditioner. This conditioning serum leaves them soft and fluttery while preventing breakage and brittleness—making it a great choice for anyone recovering from extensions or a lash lift.

Meet the Expert

Jas Imani is a New York City-based lash and brow expert. She’s known for her incredible lash lifts and often recommends (and uses) lash serums as part of a routine for maintaining beautiful, healthy lashes.

What to Look for in a Lash Growth Serum


Imani recommends looking for formulas that contain peptides, which she says are great for fortifying lash hair and helping it grow stronger. Peptides are also great for nourishing lashes that are brittle and frail, so consider them a must if you’ve been too rough with mascara removal or wear waterproof formulas on the regular.


You’re probably already familiar with biotin in supplement form, which is great for helping the hair and nails grow strong and healthy. Imani recommends looking for lash growth serums that also contain this powerful ingredient to help your lashes grow long and strong, too. 

Conditioning Formulas

In order to maintain long and healthy lashes, you’ll want to look for a formula that contains conditioning ingredients to keep them soft and prevent future breakage. Alternatively, if you’re loving a formula that doesn’t contain conditioning ingredients, you can also purchase a separate lash conditioner to help maintain lash health.

  • Are lash growth serums safe?

    In general, most lash growth serums are considered safe if used correctly and directions are followed closely. However, as Imani explains, it all depends on the ingredients in the formula. If you’re not sure of the safety of a product, she recommends consulting with your doctor about what may or may not agree with your body.

  • Do lash growth serums really work?

    According to Imani, yes, they work! Because eyelashes are made up of over 90 percent protein, many formulas contain amino acids or peptides (the building blocks of protein) to help to nourish lash hair while repairing any damage. Some formulas contain collagen, which also helps to repair damage and keep the lashes strong. These ingredients don't necessarily stimulate new growth, but by strengthening the lash hair, they'll lend your lashes a thicker, fuller, and longer appearance.

    Very few formulas contain ingredients that will stimulate new growth, such as bimatoprost, which is the active ingredient in prescription-only Latisse, and prostaglandins.

  • What is in lash growth serums?

    While the above-mentioned biotin, peptides, amino acids, and collagen are commonly found in lash growth products, Imani explains that formulas will vary from product to product. “There are 101 different formulas,” she says. “Bimatoprost, which is a very active lash growth serum, can have some questionable side effects like a change in eye color. I like serums that contain biotin and peptides, as well as ingredients that condition lashes, regardless of growth-triggering factors.”

  • Can you use lash growth serums with eyelash extensions?

    According to Imani, you can pair lash growth serums with eyelash extensions. She recommends opting for a formula that focuses on lash health to strengthen your natural lashes throughout the life of your extensions.

Why Trust Byrdie

Byrdie contributor Melanie Rud has over a decade of experience in the beauty industry, writing for some of the biggest magazines and websites out there. “Blessed” with short, pale lashes (and an allergy to the glue needed for extensions), she’s constantly rotating various lash growth serums into her nightly routine.

According to our Diversity Pledge, 15% of products in our newly-published market roundups will feature Black-owned and/or Black-founded brands. At the time of publishing, we were not able to find any lash growth serums from a Black-owned and/or Black-founded business. If you know of one we should consider, please email us at contact@byrdie.com, and we will evaluate the product ASAP.

Article Sources
Byrdie takes every opportunity to use high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial guidelines to learn more about how we keep our content accurate, reliable and trustworthy.
  1. Bimatoprost topical: medlineplus drug information.

  2. Nutrition C for FS and A. Warning letters address drug claims made for products marketed as cosmetics. FDA.

  3. Zgonc Škulj A, Poljšak N, Kočevar Glavač N, Kreft S. Herbal preparations for the treatment of hair lossArch Dermatol Res. 2020;312(6):395-406. doi:10.1007/s00403-019-02003-x

  4. Patel DP, Swink SM, Castelo-Soccio L. A Review of the Use of Biotin for Hair LossSkin Appendage Disord. 2017;3(3):166-169. doi:10.1159/000462981

  5. Almohanna HM, Ahmed AA, Tsatalis JP, Tosti A. The Role of Vitamins and Minerals in Hair Loss: A ReviewDermatol Ther (Heidelb). 2019;9(1):51-70. doi:10.1007/s13555-018-0278-6

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