Woman applying brow serum with results after 12 weeks; 100% noticed fuller brows and 100% saw sparse areas filling in

Close-up of two NULASTIN brow serum tubes beside before-and-after eyebrow photos with Real People Real Results text

Woman showcasing thicker, fuller brows beside text reading Thicker, Fuller Brows in 4 Weeks

Front view of Signature Collection BROW 2-Pack showcasing Award Winning BROW Serum packaging with a beige background

Diagram showing elastin replenishment around a brow hair follicle to support fuller-looking brows

Close-up of Signature Collection BROW 2-Pack showcasing black brow applicators against a dark purple background

This stuff works!!

Signature Collection BROW 2-Pack

Accentuate the look of brow shape and fullness with visibly reduced shedding. Visible results in as soon as 6 weeks, with greater impact at 12. In a limited edition, holiday ready box.

Includes:

2 Full Size BROW Shape Altering Serums (0.1 OZ / 3 mL each)

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One-time purchase

$168.00 $118.00

This stuff works!!

Biomimetic Keratin

Supplements keratin for enhanced resilience, so brows look and feel stronger.

Biomimetic Elastin

A bioidentical form of elastin—the protein that anchors hair—engineered to help supplement elastin exactly where it's needed most.

Biomimetic Hepatocyte Growth Factor

Works in tandem with your body's own growth factors to support visibly thicker, fuller looking brows.

Proprietary Antioxidant Support

Protects elastin from environmental stressors, helping defend against breakdown.

Patented Peptide Complex

Delivers targeted elastin support to the Elastin Root® System, where brow follicles naturally anchor.

INGREDIENTS/INGRÉDIENTS: Aqua/Water/Eau, Pentylene Glycol, Propanediol, sh-Polypeptide-50, Copper Tripeptide-1, Myristoyl Pentapeptide-17, Acetyl Isoleucyl sh-Pentapeptide-47 SP, Trifluoroacetic Acid, sh-Polypeptide-62, Keratin, Beta Vulgaris (Beet) Root Extract, Momordica Charantia Fruit Extract, Carbomer, Fructooligosaccharides, Sodium Phytate, Glycerin, Sodium Hydroxide, Sodium Chloride, Troxerutin, Potassium Lactate, Lactic Acid, Sodium Phosphate, Bimatoprost Isopropyl Ester, Dextran, Caprylyl Glycol, 1,2-Hexanediol, Sodium Benzoate, Benzoic Acid, Tannic Acid, Phenoxyethanol, Potassium Sorbate.

Results Only BROW Serum Can Deliver

More about our Clinical Studies

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Week 12

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Week 12

Clinically Proven To Transform Your Brows

100 %

noticed brows looking fuller*

100 %

saw sparse or patchy areas visibly filling in*

98 %

noticed a visible decrease in brow shedding*

Close-up of NULASTIN BROW serum applicator and open bottle showcasing the spoolie brush against a white background

*Based on the results of a 12 week independent clinical study of the 2026 NULASTIN® BROW formula among 31 subjects

Woman applying eyebrow serum to her brow

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.

Close-up of an eyebrow and eye during weeks 0 to 3 of the brow journey

Week 0-3

The formula begins to support elastin at the root of the hair follicle.

Close-up of an eyebrow showing visibly denser brows during weeks 3 to 6

Week 3-6

Start seeing subtle changes, like visibly denser brows.

Close-up of a fuller, thicker eyebrow above a brown eye

Week 6-12

Your most transformative weeks. Brows appear thicker and fuller.

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

Angled view of NULASTIN Signature Collection products showcasing silver holiday packaging with lash, brow, and hair treatments

Wrapped & Ready

Give the gift of better looking brows.

This BROW Serum duo comes dressed for the season in limited edition holiday packaging, making it the perfect gift for someone special—yourself included.

Woman smiling and looking to the side against a 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.

This set features our most advanced science yet. Powered by next generation technology, it's the formula you know and trust, now with even more elastin support and our latest advancements in peptide science.