Fast paced video of women apply eyebrow serum & close ups of the brush

Photo infographic showing Results after 12 weeks — +100% saw visible brow growth and +97% noticed brows appeared fuller

Front view of Brow Shape Altering Serum tube showing slim metallic packaging and angled brush applicator on white background

Timeline showing visible brow results — 0–3 weeks: elastin activates at the hair follicle root; 3–6 weeks: start seeing subtle, visibly denser brows; 6–12 weeks: brows appear thicker and fuller

Labeled benefits graphic showing Signal Proteins, Elastin Protein, and Keratin Protein with brief eyebrow benefits

This stuff works!!

BROW Shape Altering Serum

Brow

Get your brows back with our top rated NULASTIN eyebrow serum, clinically proven to visibly restore shape, density and fullness. Voted Best Brow Treatment by SHAPE Beauty, see noticeable results in 6 weeks and triple the wow in 12.

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1 tube is approximately a 5-6 week supply when used 2x daily

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This stuff works!!

Read More Reviews

This Works!! I was skeptical at first but after 6 weeks I already see major growth. If you are thinking about it, just do it!! You wont regret it.

Becki

Enhances Visible Thickness
Amplifies Look of Fullness
Shapes & Defines

Cruelty Free

Dermatologist Tested

Paraben Free

NULASTIN eyebrow serum features Elastaplex® Technology, a proprietary blend of biodesigned proteins and signal peptides formulated to boost elastin—the protein that anchors hair. This breakthrough technology helps minimize fallout and premature shedding by fortifying follicles at the root, resulting in visibly thicker, fuller looking brows.

Start with clean, dry eyebrows.
Use the applicator to apply BROW Shape Altering Serum in short, upward brush strokes onto the eyebrows, after skincare and before makeup application.
Apply twice daily, AM & PM.
The custom spoolie applicator is designed with synthetic bristles to pick up and deposit the ideal amount of serum for each brow.

WARNING: Use only as instructed. For external use only. This cosmetic contains a small amount of Isopropyl Cloprostenate, an analog of prostaglandin. Avoid getting serum in eyes; in the event of direct contact, rinse with cool water. If redness or irritation occurs, stop using the product. If irritation or redness persists, consult your doctor. If you tend to have sensitivity to products, we recommend a patch test before use. Do not use if you are pregnant or nursing. If you are being treated for any eye or serious medical condition, consult your doctor prior to use. Keep out of reach of children.

For more information, visit: NULASTIN Trials and Studies

Biodesigned Signal Peptide

[Myristoyl Pentapeptide-17]

A biomimetic, five amino acid peptide that supports active melanocytes & keratinocytes to strengthen eyebrows, enhance brow color, and increase visible brow density.

Biodesigned Elastin

[sh-Polypeptide-50]

A biomimetic, full length elastin protein that helps supplement elastin where it is most needed to anchor the brow follicle– minimizing fall out and maximizing visible brow density, fullness and shape.

Biodesigned Keratin

A biomimetic, full length keratin protein that helps supplement keratin where it is most needed to strengthen the brow hair follicles.

Biodesigned Hepatocyte Growth Factor

[sh-Polypeptide-62]

A biomimetic, full length signal protein that collaborates with natural growth factors to support anagen (growth) and catagen (transition) phases to promote visibly thicker, fuller brows.

Biodesigned Isopropyl Cloprostenate

A biomimetic, analog of prostaglandin included at a specific concentration to safely and effectively support natural brow growth for visibly enhanced eyebrows..

INGREDIENTS/INGRÉDIENTS: Aqua/Water/Eau, Myristoyl Pentapeptide-17, Glycerin, sh-Polypeptide-50 (Elastin), Keratin, Carbomer, Sodium Phytate, Sodium Phosphate, Sodium Chloride, sh-Polypeptide-62, Isopropyl Cloprostenate, Sodium Hydroxide, Phenoxyethanol

Real People. Real Results

More about our Clinical Studies

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12 weeks

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12 weeks

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12 weeks

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12 weeks

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12 weeks

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12 weeks

Clinically Proven to Boost the Look of Brows

100 %

saw visible brow growth*

97 %

noticed brows appeared fuller*

Close-up of brow serum spoolie applicator showing bristled brush and two droplets on a lavender surface with glass dish

* Based on the results of a 12-week independent clinical study.

Your Brow Journey starts here

Great results require consistency. With twice daily application of our eyebrow serum, here’s what you can anticipate.

Pro Tip: Take a before shot and look at it daily. It’s a great way to stay motivated—and stay on track.

Eyebrow close-up showing sparse hairs and visible skin texture before treatment

Week 0-3

Elastin begins to activate at the root of the hair follicle.

Close-up of a brow showing visibly denser hairs along the arch after 3–6 weeks of serum use

Week 3-6

Start seeing subtle changes, like visibly denser brows.

Close-up eyebrow showing thicker, fuller hairs after weeks of twice-daily brow serum use on light skin

Week 6-12

Your most transformative weeks. Brows appear thicker and fuller.

Continue applying for more progress or to maintain beautiful, lasting results.

Real Responsibility: We’re rooted in trust and transparency

All NULASTIN® products meet our Safe Science Standards: Dermatologist tested, cruelty free and formulated without sulfates, parabens, MI/MCI, formaldehydes, phthalates, talc, petrolatum and mineral oil.

Our core NULASTIN ingredients are biomimetic, meaning they mimic the body’s natural production to safely and effectively support hair and skin renewal without compromise.

Every NULASTIN product is backed by a 100% Performance Guarantee. If our product(s) did not perform up to your expectations, you may exchange or return it at any time for a refund. (Terms & Conditions Apply)

NULASTIN BROW Serum Reviews

Close-up of model face showing fuller shaped brows after using NULASTIN Brow Shape Altering Serum with light gray background

Frequently Asked Questions

Got a question about NULASTIN® BROW serum? The answer may be right here or you can check our full list of FAQs.

All of our products are designed for ease of use and can be applied under makeup with little or no wait time. For best results, use twice daily to clean, dry eyes and/or skin.

Consistency is the key to lasting results, but don’t stress out if you skip an application. If you do miss a few days, just start back up and use daily as directed. We don’t recommend trying to “catch up” with a loading dose or duplicate applications for our LASH, BROW, or HAIR products. Our skin care products can be used as much as desired—multiple times daily.

During the 12-week clinical study, no subjects experienced adverse events relating to the BROW Shape Altering Serum.