brow serum

No.1 Eyebrow Serum for Fuller, Thicker Brows

The formulas you trust. The results you see.
QUABROW Advanced Eyebrow Serum – multiple silver tubes with one open showing applicatorQUABROW Advanced Eyebrow Serum – multiple silver tubes with one open showing applicator

QUABROW® Advanced Eyebrow Serum – Bold Brows. Clinically Proven Results.

QUABROW® Advanced Eyebrow Serum supports fuller, thicker brows with a clinically developed formula. Nourishes from the root, enhances natural growth, and brings visible definition in just weeks.

Shop Now

Save on sets & kits

Open Ritual Collection box with QUABROW eyebrow serum and QUALASH eyelash serum

2-in-1 Qualash Lash and Brow Enhancing Serum Kit

The QUALASH Ritual Collection combines two expert formulas:
Eyelash Serum with QUA-X Complex™ to visibly lengthen and strengthen lashes in 4 weeks.
Eyebrow Serum to nourish, fill, and define brows for a naturally fuller look.

Your complete daily ritual for bold lashes and perfectly framed eyes.

Your complete daily lash care – no compromises.

SHOP NOW

QUABROW® Eyebrow Serum – Fuller Brows in 4 Weeks


Noticeable improvements in just 4 weeks. Up to +80% volume, +67% thickness, and +75% length after 8 weeks of regular use.

Backed by clinical testing. Loved by women who demand results.


  • QUABROW® Advanced Eyebrow Serum 3.5 ml displayed with its original black packaging box
  • Woman applying QUABROW Advanced Eyebrow Serum to light-colored eyebrows
  • Open QUABROW Advanced Eyebrow Serum next to its packaging, showcasing the product in detail
  • QUABROW® Advanced Eyebrow Serum 3.5 ml / 0.12 fl oz - Eyebrow Serum
  • QUABROW Advanced Eyebrow Serum 3.5 ml isolated on a white background with open applicator
  • QUABROW Advanced Eyebrow Serum 3.5 ml with open applicator in a clean, minimalist composition
  • Brunette woman applying QUABROW Advanced Eyebrow Serum to the brow area with close-up on the applicator tip
  • QUABROW Advanced Eyebrow Serum standing upright with the applicator opened on a reflective surface
  • QUABROW Advanced Eyebrow Serum with QUA-X Complex highlighting Pentapeptide-17, Hexapeptide-16, and Tetrapeptide-3 key ingredients
  • Quabrow Advanced Eyebrow Serum displayed with elegant product packaging
1 10

QUABROW® Advanced Eyebrow Serum 3.5 ml / 0.12 fl oz

For maximum length and fast results

255,00 zł
333,00 zł
255,00 zł
Tax included.
    Shipping information

    Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

    Ex: Shipping and return policies, size guides, and other common questions.
    Returns information

    Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

    Ex: Shipping and return policies, size guides, and other common questions.

    View full details
    QUABROW® Advanced Eyebrow Serum 3.5 ml displayed with its original black packaging box
    Woman applying QUABROW Advanced Eyebrow Serum to light-colored eyebrows
    Open QUABROW Advanced Eyebrow Serum next to its packaging, showcasing the product in detail
    QUABROW® Advanced Eyebrow Serum 3.5 ml / 0.12 fl oz - Eyebrow Serum
    QUABROW Advanced Eyebrow Serum 3.5 ml isolated on a white background with open applicator
    QUABROW Advanced Eyebrow Serum 3.5 ml with open applicator in a clean, minimalist composition
    Brunette woman applying QUABROW Advanced Eyebrow Serum to the brow area with close-up on the applicator tip
    QUABROW Advanced Eyebrow Serum standing upright with the applicator opened on a reflective surface
    QUABROW Advanced Eyebrow Serum with QUA-X Complex highlighting Pentapeptide-17, Hexapeptide-16, and Tetrapeptide-3 key ingredients
    Quabrow Advanced Eyebrow Serum displayed with elegant product packaging

    Save on sets & kits

    Hamilton laboratory test report for QUABROW Advanced Eyebrow Serum confirming microbiological safety

    It works. Our proof.

    QUALASH® Eyelash & Brow Serum – Clinically Tested, Proven Results

    Independent testing by Hamilton Lab confirmed visible results after just 4 weeks of regular use of our eyelash and eyebrow serum.

    After 8 weeks, users experienced:

    +80% increase in density
    +67% improvement in thickness
    Up to +75% increase in lash length

    Dermatologically tested. Safe and effective.

    Backed by science. Trusted by women.

    Shop now
    Official Vegan Society certificate for Quacosmetics LLC

    It works. Our proof.

    QUALASH® Vegan Lash & Brow Serum – Certified Cruelty-Free

    We care about more than just beauty — we care about values.

    Our products are officially registered by The Vegan Society, ensuring they contain no animal-derived ingredients and are never tested on animals at any stage of development.


    • 100% vegan ingredients

    • Certified by The Vegan Society

    • Cruelty-free – no animal testing, ever

    Ethical beauty. Clean science. Pure results.

    Shop now

    Beauty Blog

    FAQs

    How soon will I see results with QUABROW®?


    Most users report visible improvements in brow fullness and density within 4 to 6 weeks, with optimal results achieved after 8 to 10 weeks of consistent use.
    What kind of results can I expect?

    In a consumer study:

    - 94% saw fuller brows
    - 88% noticed improved brow shape
    - 98% observed better definition and thickness

    Results based on self-assessment after 8 weeks of regular use.
    Why is QUABROW® so effective?

    Its power lies in the QUA-X Complex™ – an advanced formula with multi-action peptides and botanical extracts that nourish brows from the root, stimulate growth, and strengthen each hair over time.
    Is QUABROW® safe for sensitive skin?

    Yes. The formula is dermatologist-tested, fragrance-free, and free from prostaglandins or harsh chemicals – making it suitable for sensitive skin and daily use.
    How do I apply QUABROW® correctly?

    Apply once daily to clean, dry skin. Use the applicator to trace the shape of each brow. Let the serum absorb fully before applying any makeup or skincare.
    Can I use QUABROW® with brow makeup or tinting?

    Absolutely. QUABROW® works great alongside makeup, brow gels, tints, or even after microblading. Just apply the serum to clean skin before anything else.
    What happens if I stop using QUABROW®?

    Your brows will gradually return to their natural growth cycle, but you won’t experience hair loss or sudden thinning. Continued use supports long-term results.
    How long does one tube (3.5 ml) last?

    One 3.5 ml tube of QUABROW® lasts approximately 4 to 5 months with daily use.

    Most other brow serums offer only 1–2 ml for the same price. With QUABROW®, you get more product, more results, and more value.
    Has QUABROW® been clinically tested?

    Yes. QUABROW® is inspired by research on peptide-driven hair stimulation and is powered by our proprietary QUA-X Complex™.

    Clinically backed. Consumer-tested. Designed for visible, measurable growth.