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2024’s Must-Have Lash Serums for Longer, Fuller-Looking Lashes

Master Cosmetologist shares what to look for in a lash serum that delivers results + check out our favorite lash serums

  • Fact Checked by: Heather Snead, Licensed Esthetician
Every glance can be a statement of beauty and confidence thanks to the transformative power of long, full eyelashes. And while falsies, extensions, and heavy mascara may look great in the moment, imagine having stunning natural lashes that are all your own.

Thanks to recent scientific breakthroughs, eyelash serums offer a genuine solution for naturally longer, fuller-looking lashes. However, the market is filled with underperforming products promising instant lash enhancement. In this article, we'll guide you on how to select an effective lash serum.

Benefits of a Quality Lash Serum

  • Visibly Longer, Fuller Lashes

  • Stronger, Thicker-Looking Lashes

  • Healthy, Moisturized Lashes

  • Natural Beauty & Confidence

Eyelash serums often contain ingredients like biotin, peptides, and other holistic extracts to support and boost lashes.

Research has shown that peptides can significantly impact lash length and density by enhancing production of keratin, a key protein in lash health. Here's what to expect when using an effective lash serum.

Lash Serum Journey: What to Expect

Month One
You might start seeing subtle changes in your lash length and volume. However, dramatic transformations in just one month are often overstated. Real, noticeable results take time.

Month Two 
As the serum continues to nourish your lash cycle, your reliance on constant mascara may decrease since your natural lashes are looking longer and thicker

Month Three 
Many users report seeing a striking difference in their lashes around this time. For the best results, we recommend using a quality lash serum for at least three months to fully appreciate its benefits.
woman_applying_lash_serum
  • Using a high-quality lash serum will actually help you (support) your own longer, thicker, denser-looking lashes so that you don’t have to use those quick fixes anymore," explains Hollywood-based Master Cosmetologist Beverley Simmons.
  • Using a high-quality lash serum will actually help you (support) your own longer, thicker, denser-looking lashes so that you don’t have to use those quick fixes anymore," explains Hollywood-based Master Cosmetologist Beverley Simmons.
But here’s the catch: the beauty industry is rife with lofty promises — and lash serums are no exception. "Some of the lash serums that are on the market today—the lower quality ones—they're not effective," says Beverley Simmons.

"You're not getting those longer, thicker, denser-looking lashes that you're really looking for because it doesn't have enough of the quality ingredients that you need,” adds Simmons. So, here's our breakdown of the essential ingredients to keep an eye out for.

Step 1

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Step 2

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Step 3

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Key Ingredients in a High-Quality Lash Serum

Peptides for a fuller look

These are special chains of amino acids designed to make your lashes look longer and fuller. Not all peptides are equal, though. We're fans of Acetyl Tetrapeptide (Capixyl™) and Biotinoyl Tripeptide (WideLash™), both of which have been shown in studies to be effective in enhancing lash appearance.

Red Clover Extract to lengthen

This plant extract is more than just a volumizing botanical; it's a scientifically supported booster for your lashes. When used along with peptides, it helps your lashes look not only longer but also thicker.

Hydrolyzed Keratin for strength

Keratin is a key protein that keeps your lashes strong and thick. Hydrolyzed keratin is a smaller, more absorbable form of this protein, making it perfect for topical application. It penetrates your lashes to reinforce their natural strength and thickness.

B Vitamins for nourishment

B vitamins like Biotin and Panthenol are essential for supporting natural lashes. They work to nourish your lashes at their roots, boosting their length and health.

Plant Stem Cells for density

Stem cells play a crucial role in determining the thickness and length of our lashes. Research has shown that introducing stem cells to hair follicles may visibly enhance hair density and length.

Watch Out For

Parabens

Commonly found in various beauty products, parabens can irritate the skin and potentially disrupt hormone functions when used in large quantities. This can lead to various side effects in some people. Beware, some lash serums containing parabens might not clearly state this on their labels. To be safe, actively seek out lash serums that are explicitly labeled as "paraben-free" to avoid these potential irritants.

Prostaglandin Analogs

While they can deliver results, these hormone-like chemicals can sometimes have harsh side effects in some people, such as rashes, pain, and even changes in eye and skin color, which might be permanent. Despite this, some popular lash serums still use derivatives such as "Isopropyl cloprostenate." These derivatives are largely recognized as safe, but it’s worth consulting with a physician if you have reservations.

Frequently Asked Questions

How often should I apply a lash serum?

Most lash serums are recommended for daily use, typically applied once or twice a day depending on the brand's instructions. For the best results, incorporate the serum into your regular beauty routine, either in the morning or evening, as directed by the product.

How long does it take to see results from a lash serum?

Noticeable results from lash serums can vary depending on the product and individual. Generally, it may take several weeks to a few months of consistent use to see a significant change. It's important to follow the product instructions and use it regularly to achieve the best results.

Are lash serums safe to use with eyelash extensions or false lashes?

Some lash serums can be safely used with eyelash extensions or false lashes, but it's important to choose a serum that is specifically designed to be compatible with them. Avoid oil-based serums, as they can weaken the glue used for eyelash extensions. Always read the product instructions and consult with a lash technician if unsure.
Now that you know what to look for and avoid in your lash serum, it’s time to shop. Check out our Brilliant recommendations below, including our very own serums: Hair La Vie’s Lash24® and Tru Alchemy’s Lunar Lash.
HLV_Lash_24_Comparison_Chart_2x_28943454-acd0-4ba4-a2fc-85eac40b5f1d

2024’s Must-Have Lash Serums

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What is lorum ipsum?

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What We Like:

    • PM lash serum + AM primer
    • 3 clinically studied lash ingredients
    • Red clover extract
    • Hydrolyzed keratin
    • Peptides
    • Biotin & panthenol
    • Plant stem cells
    • 2-month supply 
    • Prostaglandin free
    • Paraben free
    • Featured in Elle, Harper's Bazaar, Coveteur & Women's Health
    • 90-day money-back guarantee

Room To Improve:

    • Sold exclusively online

Final Thoughts

Named "Best Lash Growth Serums" by Byrdie, Hair La Vie's Lash24 presents an effective mix of three clinically studied lash ingredients and so much more. Our formula incorporates two peptides derived from natural sources, alongside silk amino acids, hydrolyzed keratin, biotin, plant stem cells, and panthenol for all-around lash nourishment.



Distinctively, Lash24 doubles as a daytime primer and an overnight serum, making it a versatile addition to your around-the-clock beauty routine. Each tube provides 8ml of product, enough for about two months, which is almost three times what you get from many other brands.



Users have reported seeing their lashes look fuller and longer in as little as 6 to 8 weeks. Hair La Vie stands behind Lash24 with a 90-day money-back guarantee, underscoring their commitment to customer satisfaction.

Product Specs

  • 2-month supply in each tube
  • 2-in-1 Day & Night lash formulas
  • 3 Clinically studied lash ingredients: Acetyl Tetrapeptide (Capixyl™), Biotinoyl Tripeptide (WideLash™), and lactitol and xylitol in glycerin (HairSpa™)
  • Also includes: red clover extract, keratin, sodium hyaluronate, green tea stem cells, biotin
  • No parabens, phthalates, harmful sulfates, or artificial fragrances
  • Price: $$

What We Like:

    • 3 Clinically studied ingredients
    • Peptides
    • Red clover extract
    • Hydrolyzed keratin
    • Biotin & panthenol
    • Plant stem cells
    • 2-month supply
    • Prostaglandin free
    • Paraben free
    • Leaping Bunny Certified Cruelty-free
    • 60-day return policy

Room To Improve:

    • Only 3 ml of product
    • Sold exclusively online

Final Thoughts

Tru Alchemy's Lunar Lash is infused with powerful conditioners that help keep lashes hydrated while promoting a longer and fuller appearance.

Our eyelash enhancer is crafted with a trio of ingredients that have been validated through clinical research, including a pair of peptides. In addition, it features a blend of clean components such as red clover extract, amino acids, hydrolyzed keratin, biotin, plant stem cells, and panthenol, all chosen for their ability to noticeably enhance lash length and fullness.

What's more, Tru Alchemy offers a reassuring 60-day money-back guarantee with no questions asked, though its effectiveness and price point might make returns unlikely, making Lunar Lash our Brilliant Buy.

Product Specs

  • 2-month supply 
  • Patented hyaluronic acid (HYALURONIX®)
  • Also includes: collagen peptides, keratin, and silk amino acids  
  • Iodine (100 mcg) 
  • No parabens, phthalates, harmful sulfates, or artificial fragrances
  • Price: $

What We Like:

    • 1 clinically studied ingredient
    • Naturally derived ingredients 
    • Acetyl tetrapeptide
    • Red clover and mung bean extract
    • Prostaglandin free 
    • Paraben free
    • Vegan & cruelty free 
    • 90-day return policy
    • 2-month supply

Room To Improve:

    • Hydrolyzed keratin and biotin
    • Amino acid complex
    • Only 3 ml of product

Final Thoughts

Vegamour's Gro+ Advanced Lash Serum is packed with powerful, naturally derived ingredients like red clover, mung bean, hemp, and a clinically studied peptide.

Gro+ Advanced Lash Serum is also 100% vegan and cruelty-free, so you can achieve stunning lashes without compromising your love for animals. And even though it may be a bit pricier than other options out there, it has many favorable reviews. Plus, Vegamour offers a generous 90-day return policy if the serum doesn't meet your expectations.

Yes, it may not contain hydrolyzed keratin or biotin, but the incredible results shared by countless satisfied customers are undeniable.

Product Specs

  • 3 ml of product per tube 
  • 2-month supply
  • Key ingredients: red clover and mung bean
  • No parabens, phthalates, harmful sulfates, or artificial fragrances
  • Vegan & cruelty-free
  • Price: $$

*We earn a commission if you click on this link to make a purchase of Gro+ Advanced Lash Serum.

What We Like:

    • Panthenol
    • Comprehensive amino acid complex 
    • Peptide-packed radish root ferment
    • Glycosaminoglycans
    • Paraben free
    • Cruelty free
    • 90-day return policy

Room To Improve:

    • Keratin and biotin
    • Contains prostaglandin analog

Final Thoughts

GrandeLASH-MD's award-winning lash serum is infused with a potent blend of ingredients to help promote the appearance of longer, thicker lashes. Its formula includes panthenol, amino acids, and other lash-supporting ingredients. 

While it doesn't contain red clover extract, biotin, and hydrolyzed keratin, many users have still seen stunning results in just 4-6 weeks. And, although GrandeLASH-MD contains a prostaglandin analog, their formula has been ophthalmologist, safety & efficacy tested. 

Their formula comes in 2 different sizes, the larger containing 4ml of product. And for added convenience, this serum is designed for nighttime use only. Grande Cosmetics also offers a 90-day return policy if you're not 100% satisfied with their product.

Product Specs

  • Available in 1, 2, or 4ml tube
  • Grande claims each ml is a 6-week supply 
  • Once a day application
  • Cruelty-free
  • Paraben-free
  • Key ingredients: prostaglandin analog, radish root ferment, grape seed extract, amino acids, hyaluronic acid, honey & aloe vera
  • Price: $$

*We earn a commission if you click on this link to make a purchase of GrandeLASH-MD

What We Like:

    • 3 peptides 
    • Hydrolyzed keratin 
    • Biotin & panthenol
    • 5ml of product
    • Paraben free
    • 60-day guarantee
    • 2-month supply

Room To Improve:

    • Contains a prostaglandin analog 
    • High price point at $170
    • Amino acids

Final Thoughts

Rounding out our list is Rodan + Fields Lash Boost. Their formula includes favorites like panthenol, keratin, and biotin to condition your eyelashes to achieve youthful, fuller-looking definition. It can also be used on brows.

Lash Boost isn't formulated with amino acids and contains a prostaglandin analog. Rodan + Fields Lash Boost costs $170, which is 2-3 times as much as the average eyelash serum. However, the results seem to speak for themselves.

On the upside, it does contain a generous 5ml of product per tube. And if you're not satisfied with this product, Rodan + Fields offers a 60-day money-back guarantee.

Product Specs

  • 5 ml of product per tube 
  • Nightly application
  • Key ingredients: keratin, biotin, hyaluronic acid, peptides, prostaglandin analog
  • Price: $$$

*We earn a commission if you click on this link to make a purchase of Lash Boost

The Brilliant Process

How We Choose Products

Like you, we’re picky about products — and serious about quality

Whether we’re featuring an award-winning product from one of our five beauty and wellness brands — or somebody else’s — a Brilliant recommendation doesn’t see the light of day until it has been medically reviewed for accuracy and has fulfilled our Brilliant Criteria.

At Brilliant, we’re not afraid to highlight and celebrate other brands who are doing things right.

Brilliant Criteria

We take great care in handpicking high-quality products to feature on Brilliant. Here’s how we choose them:
  • Research-Based Ingredients: We dig deep into the latest research and look for products that contain science-based ingredients for optimal impact.
  • Pure, Holistic Formulas: We prioritize products that contain clean, wholesome ingredients shown to be effective. A product should only contain what it needs and nothing else — period.
  • Brand Credibility: Each product on our list is produced by a company with trusted credibility. We've also verified that each brand adheres to labeling requirements set forth under current Good Manufacturing Practices (cGMP).
  • Value: We evaluate products based on industry averages and price per serving or application. We also consider quantity and return policy.

Why Trust Us?

As veteran leaders in the wellness space with an award-winning brand portfolio of 100+ health and beauty products, we are committed to honesty and transparency, providing unbiased insights into the benefits and limitations of the information and products we evaluate — including our own. Every Brilliant Buying Guide is thoroughly vetted for medical accuracy prior to publication.

With our discerning selection process, you can feel confident that the products we recommend meet the highest benchmarks of quality, transparency, and efficacy. If we wouldn’t use a product ourselves, it’s not Brilliant.

Citations

  1. Alvin G, Chernykh V, Chan M (2020) Peptides: A Novel Approach to Enhance Eyelash and Eyebrow Growth. J Dermatolog Clin Res 8(2): 1137
  2. Sachdev, M., Velugotla, K., Revanker, S., & Somasekhar, G. (2020). The Journal of Clinical and Aesthetic Dermatology, 13(2), 61-66. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7158911/
  3. Lucas Meyer Cosmetics. (2017). In Capixyl Technical File. [pp. 2-11, 49-59]. Lucas Meyer Cosmetics.
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