pinterest-site-verification=c1273b1c2ce465fce08bef7d5f5b01d9

10 Best Eyelash Serums for Growth and Thickness in 2026

August 14, 2026
Written By jamesmathew

BestBlendershub is a participant in the Amazon Affiliate Program. Some links on this site are affiliate links, which means we may earn a small commission if you purchase through them at no extra cost to you. We only recommend blenders and products we trust, ensuring all reviews and content remain honest, helpful, and unbiased.

Many people assume that spending more money automatically leads to faster results with their lashes. This is rarely the case, as the specific ingredient profile matters far more than the price tag attached to the bottle.

Selecting the best eyelash serums for growth and thickness requires a careful look at what you are actually putting near your eyes. Once you understand the mechanics of these formulas, you can find the right match for your sensitive skin. Keep reading to see how these options stack up.

Key Takeaways

  • Prioritize formulas that use peptides and vitamins to support the natural hair growth cycle.
  • Check if the serum is free of prostaglandin if you have a history of eye sensitivity or irritation.
  • Verify the bottle size to understand how many months of daily application you are actually purchasing.
  • Look for dual-use options if you also want to improve the appearance of your eyebrows.
  • Choose cold-pressed natural oils like castor if you prefer a simplified, botanical-based approach to conditioning.

Our Top Best Eyelash Serums For Growth And Thickness Picks

Best Overall Value Generic Eyelash Growth Serum Formula Generic Eyelash Growth Serum Formula Simple application process Lightweight, clear formula Supports natural lash health View on Amazon Read Review
Top Performance Choice GrandeLASH-MD Lash Enhancing Serum GrandeLASH-MD Lash Enhancing Serum Peptide and vitamin blend Safe for sensitive eyes Visible length results View on Amazon Read Review
Best Large Capacity Premium Lash Enhancing Serum 5mL Premium Lash Enhancing Serum 5mL Generous 5mL bottle size Gentle on sensitive skin Noticeable volumizing effect View on Amazon Read Review
Dual Purpose Tool Advanced Lash and Brow Serum Advanced Lash and Brow Serum Multi-use for lashes, brows Promotes growth effectively Streamlined beauty routine View on Amazon Read Review
Longest Lasting Supply NUNA Biotin Multi-Peptide Serum NUNA Biotin Multi-Peptide Serum Six-month supply duration Contains biotin and peptides Suitable for all genders View on Amazon Read Review
Best Extension Friendly Babe Original Lash Enhancing Serum Babe Original Lash Enhancing Serum Safe for lash extensions Vegan and cruelty-free Strengthens natural hair View on Amazon Read Review
Natural Conditioning Power Organic Cold Pressed Castor Oil Organic Cold Pressed Castor Oil 100% pure castor oil Hexane-free, cold pressed Excellent for deep conditioning View on Amazon Read Review
Salon Grade Quality Borboleta Lash Enhancing Serum Borboleta Lash Enhancing Serum Professional, salon-grade quality Concentrated formula Improves lash density View on Amazon Read Review
Best Application Kit Castor Oil Dual Ended Kit Castor Oil Dual Ended Kit Includes ready-to-use tubes Pure, cold-pressed oil Versatile for hair, skin View on Amazon Read Review
Best Post-Process Repair ForChics Prostaglandin-Free Lash Serum ForChics Prostaglandin-Free Lash Serum Prostaglandin-free formula Repairs over-processed lashes Focuses on hair strength View on Amazon Read Review

More Details on Our Top Picks

  1. Generic Eyelash Growth Serum Formula

    Generic Eyelash Growth Serum Formula

    Best Overall Value

    View on Amazon

    If you want a straightforward approach to lash care, this serum is a solid starting point. It focuses on daily conditioning to help your natural lashes reach their full length and density potential.

    The clear, lightweight formula is easy to apply along the lash line. Just be aware that because it uses a general formulation, you might need to use it consistently for at least eight weeks before you notice a visible difference in growth.

    • Main Benefit:Growth and thickness
    • Target Area:Eyelashes
    • Additional Feature:Fast absorbing liquid
    • Additional Feature:Suitable for daily use
    • Additional Feature:Minimalist ingredient list
  2. GrandeLASH-MD Lash Enhancing Serum

    GrandeLASH-MD Lash Enhancing Serum

    Top Performance Choice

    View on Amazon

    This serum is the gold standard for those who want noticeable volume and length. It relies on a blend of peptides and vitamins that nourish the hair follicle, making it an excellent match for anyone dealing with brittle or sparse lashes.

    It is ophthalmologist-approved, which provides peace of mind for those with sensitive eyes. Keep in mind that the small 1mL bottle is designed as a short-term supply, so you will need to plan for replenishments if you want to maintain your results.

    • Brand:Grande Cosmetics
    • Main Benefit:Longer, thicker lashes
    • Volume:1mL
    • Primary Ingredient:Peptides and vitamins
    • Target Area:Eyelashes
    • Supply Duration:6 weeks
    • Additional Feature:Ophthalmologist approved
    • Additional Feature:Cruelty-free formula
    • Additional Feature:Precision brush applicator
  3. Premium Lash Enhancing Serum 5mL

    Premium Lash Enhancing Serum 5mL

    Best Large Capacity

    View on Amazon

    For those who dislike running out of product, this 5mL bottle offers a significant amount of serum to keep your regimen going. The advanced formula is designed to provide a volumizing effect while remaining gentle enough for daily application on delicate skin.

    It works well for users who want a thicker, fuller look without irritation. While it is quite effective, make sure to apply it carefully at the base of the lashes to avoid getting excess product inside the eye.

    • Main Benefit:Volumizing and thickening
    • Volume:5mL
    • Target Area:Eyelashes
    • Additional Feature:Non-irritating formula
    • Additional Feature:Long-lasting supply
    • Additional Feature:Easy to use wand
  4. Advanced Lash and Brow Serum

    Advanced Lash and Brow Serum

    Dual Purpose Tool

    View on Amazon

    This serum serves as a multitasker, working effectively on both your eyelashes and your eyebrows. It is a fantastic pick if you want to streamline your beauty routine without cluttering your vanity with multiple specialized bottles.

    The formula aims to improve the overall appearance of luscious lashes and fuller brows simultaneously. It is quite potent, so start with a light hand to ensure your skin reacts well before increasing the frequency of your use.

    • Main Benefit:Thicker, longer hair
    • Volume:3mL
    • Target Area:Lashes and eyebrows
    • Additional Feature:Dual-purpose applicator
    • Additional Feature:Nourishing ingredients
    • Additional Feature:Quick-dry formula
  5. NUNA Biotin Multi-Peptide Serum

    NUNA Biotin Multi-Peptide Serum

    Longest Lasting Supply

    View on Amazon

    If you appreciate efficiency, this 6mL bottle will last you through a full six months of care. It incorporates biotin and peptides, which are key building blocks for hair health, providing a comprehensive treatment for both men and women.

    The addition of natural extracts helps to soothe the skin while the peptides encourage longer lash growth. Because it is such a large bottle, always make sure to keep the cap tightly sealed to maintain the integrity of the formula over time.

    • Brand:NUNA
    • Main Benefit:Fuller and longer lashes
    • Volume:6mL
    • Primary Ingredient:Biotin and peptides
    • Target Area:Lashes and eyebrows
    • Supply Duration:6 months
    • Additional Feature:Natural plant extracts
    • Additional Feature:Unisex application
    • Additional Feature:Large volume capacity
  6. Babe Original Lash Enhancing Serum

    Babe Original Lash Enhancing Serum

    Best Extension Friendly

    View on Amazon

    This is a versatile serum that plays nicely with your existing lash extensions, helping your natural lashes stay healthy underneath. It is vegan and cruelty-free, which makes it a popular choice for those who prioritize ethical beauty standards.

    The formula provides a fuller appearance while strengthening the base of the hair. While it works well with extensions, you should avoid applying it directly to the glue bonds to ensure the longevity of your set.

    • Brand:Babe Original
    • Main Benefit:Fuller, longer look
    • Target Area:Lashes and brows
    • Additional Feature:Advanced nourishing treatment
    • Additional Feature:Ethical production standards
    • Additional Feature:Compatible with makeup
  7. Organic Cold Pressed Castor Oil

    Organic Cold Pressed Castor Oil

    Natural Conditioning Power

    View on Amazon

    Sometimes the simplest solution is the most effective, and this pure castor oil is a classic staple. It provides deep hydration to every strand, which can help prevent breakage and make your lashes look naturally darker and thicker.

    Since it is 100% pure and hexane-free, you do not have to worry about harsh chemicals near your eyes. Just keep in mind that oil has a thicker consistency than traditional serums, so a tiny amount goes a very long way.

    • Main Benefit:Full, healthy lashes
    • Primary Ingredient:Cold pressed castor oil
    • Target Area:Lashes and brows
    • Additional Feature:Made in USA
    • Additional Feature:Chemical-free formula
    • Additional Feature:Multi-use oil
  8. Borboleta Lash Enhancing Serum

    Borboleta Lash Enhancing Serum

    Salon Grade Quality

    View on Amazon

    Designed for those who want salon-quality results at home, this serum focuses on creating the appearance of thicker and fuller lashes. It is a reliable option for anyone who has noticed their lashes thinning due to environmental stress or aging.

    The formula is concentrated, so you only need a single swipe along the lid to see results over a three-month period. It is a great investment for those who are serious about their lash growth journey.

    • Brand:Borboleta
    • Main Benefit:Longer, thicker lashes
    • Supply Duration:3 months
    • Additional Feature:Precision applicator
    • Additional Feature:High-performance ingredients
    • Additional Feature:Full-size bottle
  9. Castor Oil Dual Ended Kit

    Castor Oil Dual Ended Kit

    Best Application Kit

    View on Amazon

    This set is brilliant because it includes a glass bottle of pure castor oil and a dedicated dual-ended tube for easy application. It removes the mess often associated with using raw oils on your face.

    The kit is perfect for someone who prefers a holistic beauty approach and wants the tools to apply the product with precision. Because the oil is so pure, you can even use the leftover product to condition your hair or skin.

    • Main Benefit:Hair growth support
    • Volume:2oz
    • Primary Ingredient:100% castor oil
    • Target Area:Lashes, brows, skin
    • Additional Feature:Glass bottle storage
    • Additional Feature:Dual-ended applicator included
    • Additional Feature:Hexane-free purity
  10. ForChics Prostaglandin-Free Lash Serum

    ForChics Prostaglandin-Free Lash Serum

    Best Post-Process Repair

    View on Amazon

    If your lashes are damaged from constant extensions or lifts, this peptide-rich formula is designed to rebuild them. It is prostaglandin-free, which is an ideal feature for those who want to avoid certain synthetic hormones in their beauty products.

    The focus here is on strength and restoration, helping your lashes recover from wear and tear. It is very gentle, though you should remain patient as natural repair often takes a bit of time to show real results.

    • Brand:ForChics
    • Main Benefit:Rebuilds thin lashes
    • Volume:3mL
    • Primary Ingredient:Peptides
    • Target Area:Eyelashes
    • Additional Feature:Gentle on delicate eyes
    • Additional Feature:Restorative peptide blend
    • Additional Feature:Ideal for lift recovery

Factors to Consider When Choosing Best Eyelash Serums For Growth And Thickness

Prostaglandin Content

Many effective serums rely on prostaglandin analogs, which are synthetic compounds that keep lashes in the growth phase longer. While these provide the most dramatic results, they can occasionally cause eye irritation or darkening of the eyelid skin. If you have sensitive eyes, check the label for these ingredients before you commit.

Peptide Blends

If you prefer a gentler approach, look for formulas centered on peptides. These amino acid chains support the keratin production in your hair follicles to strengthen existing lashes. They take longer to show visible changes, but they are generally well tolerated for daily use.

Conditioning Ingredients

Your lashes need moisture just like the hair on your head does. Scan the ingredient list for hyaluronic acid or panthenol, which act as humectants to pull water into the hair shaft. This keeps your lashes flexible and hydrated, preventing the brittle breakage that makes them look thin.

Application Precision

Think of your serum applicator like an artist's brush. A fine-tip liner brush allows you to apply the product directly to the base of the lash line where the follicle lives. Avoid wands that look like mascara brushes, as they often deposit too much product onto the lash length instead of the skin surface.

Budget and Value

Prices range from twenty dollars for basic conditioning treatments to over one hundred dollars for high-end clinical formulas. Remember that you only need a tiny amount for each application. A small three-milliliter tube should last you about three months if you use it consistently.

Frequently Asked Questions

How long does it take to see results?

Patience is your best friend here. While some people notice a difference in four weeks, it usually takes about twelve weeks of daily application to see full growth. Your lashes follow a natural cycle, so they need time to shift into that longer growth phase.

Can I wear these serums with eyelash extensions?

You should generally avoid oil-based serums if you wear extensions, as they can dissolve the adhesive holding your lashes in place. Look for water-based formulas labeled as safe for extensions. Always clear it with your technician first to ensure your specific glue remains intact.

What happens if I stop using the product?

Once you stop applying the serum, your lashes will gradually return to their original growth cycle. You will likely notice them thinning out or returning to their previous length after about one or two months. Think of it like a vitamin for your hair; you have to keep taking it to maintain the benefits.

Is it safe to use these on my lower lashes?

Most experts suggest sticking to the upper lash line only. When you blink, the product naturally transfers to your bottom lashes, which prevents excessive product buildup or potential migration into the eye itself. Applying it directly to the bottom line often leads to redness or irritation.

Will these serums change my eye color?

Rare cases of iris pigmentation have been linked to high-concentration prostaglandin analogs used directly inside the eye. Because you are applying this to the skin of the eyelid, the risk is minimal. Still, be careful not to let the liquid drip into your actual eyeball during application.