Best Eyelash Growth Serum for Long Lashes and Thick Brows



by Lydia


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Eyelashes might seem like a small part of your body, but they can add a lot of aesthetic appeal to your face. Unfortunately, when your lashes are spread thin, it becomes difficult to make them pop, even with mascara. Nevertheless, you can resolve this issue with the best eyelash growth serum. 

This post covers the most suitable options you have and the factors to think about as you make your choice.

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 Best Eyelash Growth Serum


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Best Eyelash Growth Serum - Reviews

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Top on our list is Revitalash Advanced Eyelash Conditioner Serum, which makes your lashes stronger and more flexible to prevent unwanted breakage. It is a one-of-a-kind formula that will ensure you experience the thick eyelash growth you desire.

This product contains a mix of various extracts meant to fortify your lashes for maximum protection from harsh environmental factors. It will also help manage the damage resulting from the use of lash styling products that make your lashes brittle.

You won't have to worry about parabens, phthalates, gluten, or BHT in the Revitalash Eyelash conditioner serum since all the nourishing ingredients used are hypoallergenic and non-irritating. Additionally, you can safely use this lash growth serum with eyelash extensions since it's oil-free

All you'll mostly need is patience since you can witness the best results after about six weeks of using this formula. 


  • Easy to apply
  • Resolves eyelash damage
  • Boosts lash growth
  • Works with eyelash extensions


  • Expensive

Next up, we have the Ophthalmologist tested GrandeLASH-MD Lash Enhancing serum which you can use alongside your contacts and lash extensions. It's formulated using a blend of amino acids, peptides, hyaluronic acid, and vitamins to boost the natural growth of your lashes within 4-6 weeks. After three months of use, you should have longer and thicker lashes that make your eyes pop in the right way.

This lash-enhancing serum is the best chance of getting stronger and better-looking lashes if you are struggling with short, thin, or brittle lashes. However, something to keep in mind is that you'll be applying this serum on your lash roots rather than the lashes themselves.

The tip brush is soft enough to deliver a decent amount of serum onto your lash line, just like a liquid eyeliner is designed. This makes it easy to use this Grande Cosmetics product as part of your beauty regimen, which is why it's one of the best eyelash growth serums you can buy. 


  • Restores damaged lashes
  • Enhances lash strength and thickness
  • Suitable for use with contacts and lash extensions
  • A single swipe is enough


  • Not suitable for pregnant women, those nursing babies, or undergoing chemotherapy

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In third place is the Phyto-Medic Eyelash Enhancer, Lashfood, which is an Ecocert certified lash enhancer. This clinically-tested formula was designed by a team of cosmetic scientists to promote a longer and thicker appearance of eyelashes.

Say goodbye to frail and brittle-looking lashes and enjoy the visible difference of long, stunning lashes with this LashFood eyelash enhancing serum. This product is designed to deliver nutrients and powerful ingredients to your hair follicles to cause an improvement within minimal time. 


  • Gentle and Non-irritating
  • Makes eyelashes appear longer and thicker
  • Gets lashes darker


  • A bit pricey

Next in our list of the best eyelash growth serums is the Peter Thomas Roth Lashes to Die For Turbo Nighttime Eyelash Treatment. It is a great lash serum that can highlight the length and thickness of your ashes after application on the upper lash line.

Rest assured, you won't get any eye discoloration or irritation while using this Ophthalmologist tested eyelash serum. After applying a thin line every night to the roots of your lashes, you can start expecting results within four to six weeks. Additionally, the Tri-Phase Lash Complex will target the three stages of hair growth to enhance lash growth to exceptional lengths. 


  • Improves the appearance of length, thickness, and fullness
  • Gentle and safe
  • Visible results


  • Applying more than once a day can cause irritation.

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You don't have to keep struggling with thin sparse lashes and patchy eyebrows anymore. Introducing the Pronexa Hairgenics Lavish Lash and Brow Serum which can give you long and luscious results within as little as 2 months.

Extensions can be a thing of the past for you since this formula can add sheen and luster to your eyelashes so that you won't need to extend them anymore. The botanically-derived compounds in this eyelash and eyebrow enhancing serum will stimulate and fortify your lashes and brows to a noticeable length.

This hypoallergenic product is safe, effective, and easy to apply, which is why it's one of the best lash serums on the market. Nevertheless, it's crucial to avoid direct contact with your eyes since this can irritate you. 


  • Boosts length and thickness of brows and lashes
  • Effects come in as little as 60 days
  • Easy to apply
  • High-quality ingredients


  • Contact with your eyes causes irritation
  • Not ideal for those with sensitive eyes

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If you are looking for something safe to use for your eyes and lashes while improving your lash-brow appearance, this EssyNaturals Growth will do it for you. It's designed to be safe for all skin types, including sensitive skin, and can boost the growth of frail, thin lashes into a fuller and healthier state when applied daily.

This gentle formula is specially designed to magnify, prime, and lengthen lashes thanks to the combination of peptides, biotin, and amino acid compounds it features. It has been clinically proven to increase the length of natural eyelashes in as little as 3 weeks of daily use.

The EssyNaturals growth serum also works as a primer and is easy to apply since it has the same design as your standard eyeliner. 


  • Quick application
  • Lengthens and thickens lashes
  • Works for eyebrows as well
  • Doesn't require a prescription


  • Can cause discoloration on the applied area

Castor oil is one of the most effective formulas for boosting and enhancing hair growth, including your lashes and eyebrows. As such, it is a natural remedy you can use to fortify and strengthen lashes and eyebrows from the comfort of your home.

The active ingredient in this serum is ricinoleic acid which can reverse hair loss, making it ideal for treating thinning of eyelashes. As a result, you'll get thicker and stronger lashes that won't easily break. This package includes a bottle of organic castor oil, a glass dropper, 5 wands, and 5 brushes which means you'll have everything you need to start a full lash treatment.

Plus, this formula is vegan, gluten-free, and organic while also being free from parabens, phthalates, and artificial scents. As such, it is one of the safest options for those who prefer natural ingredients.


  • Get's lashes longer, thicker, and darker
  • Comes with five wands and brushes
  • Easy to use


  • It May take months to work

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The next product on this review of the best lash serums is the LUXROS Eyelash & Eyebrow Serum, which solves your thin and sparse lash issues. It provides a sure way of getting your eyebrows and lashes healthier and stronger.

The formula is specially made to improve the condition of frail and brittle hairs on your brows and lashes to make them appear longer, fuller, and darker. All you need to do is apply a layer of this eyelash serum on your upper and lower lash line every night. Your skin should be clean and dry as you use this formula, and it should only go on your roots like an eyeliner.

With consistent use, you can expect some results within 4 weeks since the lash serum permeates your follicles to deliver the nutrients necessary for optimal growth.


  • Easy application
  • Quick results
  • Fast growth
  • Natural ingredients


  • Slight irritation on the skin during use

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The L'Oreal Paris brand is among the best manufacturers of skin and hair care products. That is why this lash serum is among the most suitable eyelash serums you can buy. It is designed to gently work on your lashes without affecting your eyes, making it ideal for people with sensitive eyes.

This product is meant for daily use for optimal results. This means you'll have to use it every morning and evening for about four weeks to witness visible results. The active ingredient in this formula is pro-vitamin B5 which works alongside other compounds like hyaluronic acid and arginine to nourish and boost lash growth.


  • Affordable
  • Safe for those with sensitivity issues
  • Contains natural ingredients
  • Works in as little as four weeks


  • You'll need to use it twice every day for ideal results.

Lastly, we have this Rapid Lash Growth Serum formulated to supply the crucial nutrients your body needs for eyelash growth. It is a reliable product to buy if you want long, thick, and shiny eyelashes that wear mascara. The hypoallergenic compounds in this formula keep your skin and eyes free from irritation and general discomfort as you use this serum.

You can apply this solution to promote eyelash growth, reduce lash loss, and restore thickness. The bottle will last about 60 days which is enough time to see the results you desire with regular use. You can use it up to three times each day without severe effects. 


  • Low price
  • Easy to use
  • Gentle on skin and eyes


  • Few customer reviews

Factors to Consider When Choosing the Best Eyelash Growth Serums

1. Sensitivity Issues

The first thing you should think about when looking for the best eyelash growth serum is whether you have any sensitivity issues. This is because not all eyelash serums are gentle on the skin and eyes, and some could cause much discomfort, which could cause severe effects.

Those with sensitive eyes or sensitive skin should tread lightly when selecting lash serums. You should ensure that they are designed to be gentle on the skin and eyes for comfortable use.

2. Ingredients

The ingredients of the serum determine how gentle or harsh the product is on your skin and eyes. One of the things you want the formula to have is natural ingredients. This means that you want something free from sulfates, phthalates, parabens, and other harsh chemicals that can cause irritation.

If you experience severe redness or discomfort, you should immediately stop using the lash serum. Additionally, if you are pregnant, breastfeeding, or on chemo, you'll want to consult a doctor before using an eyelash growth serum in your regimen.

3. Effectiveness

Most people think that eyelash serums are a scam because they don't work within a week. However, it's impossible to see results instantly since these serums are formulated to boost growth after consistent use. That is why you'll have to use the formula for at least four weeks before assessing the difference in your lashes.

Some eyelash formulas work faster than others, but you'll need a lot of patience when using these products. This means that you might not know whether the product is effective or not for the first few weeks, but with some consistency, you should see the results you desire.

Frequently Asked Questions

1. What is the best eyelash growth serum?

The best eyelash growth serum you can buy is the Revitalash Advanced Eyelash Conditioner Serum which is easy to apply and gentle on the skin.

2. Are Eyelash Growth Serums Safe?

Yes, eyelash growth serums are safe to use as long as they don't make any contact with your eyes. They may feel itchy for a few seconds but should not cause major discomfort.

3. Is there a lash serum that actually works?

Eyelash serums work just as well as other skin and hair care products. However, it will take a few weeks before the visible change is apparent.


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