Apply as directed while it suits your routine. The serum is intended to condition existing brow hairs; individual experiences vary.

LashOriginals eyebrow serum white tube with spoolie applicator, brow density and biotin complex

Eyebrow Serum – Water-Based, Keratin & Biotin

$39.90

Eyebrow Serum – Water-Based, Keratin & Biotin

$39.90

Achieve softer, more manageable brows with the LashOriginals Eyebrow Serum. This lightweight, water-based formula helps condition brow hairs while making them easier to shape and style.

5 mL. Apply once daily to clean, dry brows.

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★★★★★

“I’m totally shocked! You don’t think a product is doing anything until you do before and afters!”

Julianne R.

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LashOriginals Eyebrow Serum

This formula contains hydrolysed keratin, biotin and a peptide and is designed for daily cosmetic conditioning of existing brow hairs.

With its fast-absorbing texture, it fits seamlessly into your routine—whether used on its own or as part of your daily brow styling.

Why You'll Love It

Helps soften and condition brow hairs
Makes shaping and styling easier
Infused with keratin, biotin and a peptide
Water-based and lightweight formula
Patch test before first use.
Apply once daily as directed.

How to Use

Apply once daily, at any time of day.
Use on clean, dry brows.
Brush through the brows using the applicator, following the natural shape.
Allow the product to dry before applying other brow products.
Apply once daily as directed.

Full routine: how to apply a brow serum, before or after makeup, and the mistakes that waste a tube.

When to Use

Can be used once a day, at any time that suits your routine. Apply to clean, dry brows and allow the serum to dry fully before applying other brow products.

Formula Details

This serum shares the water-based, prostaglandin-free base as our lash serum and adds hydrolysed keratin alongside biotin and a peptide, in a formula designed for daily use on brow hair.

This water-based formula is designed for regular use as part of your brow care routine. Patch test before first use.

Warning Before Use

For external use only.
Avoid direct contact with eyes. If contact occurs, rinse thoroughly with cool water.
Do not apply to irritated or damaged skin.
Do not share the applicator.
Keep out of reach of children.
Discontinue use if irritation occurs. If symptoms persist, seek medical advice.

Full ingredient list (INCI)

Aqua, Butylene Glycol, Glycerin, Propanediol, Phenoxyethanol, Hydrolyzed Keratin, Betaine, Panthenol, Sodium Hyaluronate, Aloe Barbadensis Leaf Juice, Ethylhexylglycerin, PPG-26-Buteth-26, Biotin, Glucose, Urea, PEG-40 Hydrogenated Castor Oil, Fructose, Hydrogenated Starch Hydrolysate, Sodium PCA, Sodium Benzoate, Citric Acid, Potassium Sorbate, Glycine, Glycolic Acid, Hydrolyzed Wheat Protein, Lactic Acid, Lysine, Malic Acid, Sodium Glutamate, Tartaric Acid, Arginine, Oleanolic Acid, Biotinoyl Tripeptide-1.

PEG-40 Hydrogenated Castor Oil is included in the published ingredient list.

What's inside

Keratin — included in the published ingredient list as Hydrolyzed Keratin.
Biotin — included in the published ingredient list.
Peptides — short chains of amino acids that are listed among the ingredients in this cosmetic brow-conditioning formula.
Formula note: The published ingredient list contains no prostaglandin analogues or parabens.

What to expect

With regular use, the serum helps condition existing brow hairs for a softer, more groomed appearance. Individual results vary.

FAQ

What can I expect? The serum helps condition existing brow hairs for a softer, more groomed appearance. Apply to clean, dry brows and brush through with the spoolie. Individual experiences vary.

Will it help over-plucked brows? The serum conditions existing brow hairs and supports a fuller-looking appearance. It cannot replace missing brow hairs.

Can I wear makeup over it? Apply to clean, dry brows. Allow the serum to dry fully before applying brow makeup.

Can I use it after microblading? Follow your microblading artist’s aftercare instructions and do not apply the serum to skin that is still healing. Ask your artist or healthcare professional when to resume brow products.

Is it the same as the lash serum? Same philosophy, different build: the brow formula and applicator are designed for use along the brow line.

How much is in one tube? Each tube contains 5 mL of serum. Apply as directed.

What if I have sensitive skin? Individual sensitivities vary. Patch test before first use and discontinue use if irritation occurs.

Can men use it too? Yes — the formula and application are the same regardless of gender; it's simply a brow-conditioning serum.

Can I stop using it? Yes, you can stop at any time. Individual experiences vary. The serum is intended to condition existing brow hairs; individual experiences vary.

How is this different from brow serums that contain prostaglandins? Our published ingredient list contains no prostaglandin analogues. This serum is designed to condition existing brow hairs for a softer, more groomed appearance.

Can I use it if I'm pregnant or breastfeeding? As a general precaution with any new cosmetic product, ask your doctor or pharmacist before starting a new product while pregnant or breastfeeding.

Will it interfere with brow tinting? Do not assume compatibility with brow tinting or recently tinted brows. Follow your tinting professional's aftercare advice and ask when to resume serum use.

Related reading

Pairs with: Lash & Brow Serum Duo

5 stars: 80 (81%)
4 stars: 14 (14%)
3 stars: 5 (5%)
2 stars: 0 (0%)
1 star: 0 (0%)

I started using it because my eyebrows were sparse; I wasn't very hopeful at first, but I can better appreciate the results when I look at my photos

I wanted my eyebrows to look fuller; the hair, especially along the top, was very fine and sparse, and it didn't seem likely they would ever thicken up. This serum is like a miracle—my eyebrows, which used to look so wispy, have truly transformed into a completely different set of brows.

I noticed a difference in the condition and fullness of my brows after nearly six weeks use. I have ordered and received my second brow serum.
I think it will now be a staple in my daily routine.

I’m totally shocked! You don’t think a product is doing anything until you do before and afters!

I didn't have sparse brows, but they weren't as full as they used to be. After a few months of regular use, they look thicker and more even across the whole brow. I've cut right back on using brow pencil because they already look much fuller on their own.

Happy with the purchase so far. It arrived quickly and feels gentle, but I'm still waiting to see noticeable results.

I wish I'd started using it sooner.

It's subtle, but people who see me regularly have noticed.

The before and after photos surprised me.

Not a miracle product, but I can see a difference.

The sparse spot in one brow is finally starting to catch up.

Pretty happy with the results so far.

It gives my brows a more groomed look without making them stiff. Really enjoying it so far.

I've overplucked for years and this is the first thing that's helped a bit.

Didn't think it was doing much until I looked at older photos.

The packaging feels premium and everything arrived in perfect condition. The serum itself feels very gentle.

Sharing my transformation here—I can’t believe the difference! I was hesitant about getting microblading, but I decided to try this product based on a friend’s recommendation. With consistent use, you can truly see the change

My brows look so healthy now that I feel confident even without makeup. Everyone has started asking me what I’m using!

I used to rely on brow pencils all the time. Now, after using this serum, my natural brows look full enough on their own.

I’ve tried so many products, but this one truly works. Just use it regularly, and you’ll see visible results in no time.

I was close to giving up after a month. Glad I didn't.

I could never get my brows to look thicker. This serum has been a lifesaver! The best part is how naturally it enhances my brows.

My brows have been sparse and unnoticeable for years. After just 3 weeks of using this serum regularly, I saw incredible differences. They’re now much fuller and more defined!