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.

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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.

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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
  • 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 / 0.12 fl oz - Eyebrow Serum
  • 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 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
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QUABROW® Advanced Eyebrow Serum 3.5 ml / 0.12 fl oz

For maximum length and fast results

256,00 zł
256,00 zł
256,00 zł
Tax included.
    Free Shipping in EU

    Shipping Information (Free Shipping in EU)
    ✔ Free shipping within the European Union on orders over €50.
    ✔ For orders below €50 in the EU, standard rates apply.
    ✔ Shipping outside the EU is available for a flat fee of €8.
    ✔ All orders are dispatched within 1–2 business days.
    The 90-Day Lash Love Guarantee

    We believe in visible results — and in your satisfaction. That’s why every QUALASH® product comes with a 90-day money-back guarantee.

    Not in love with your results? No worries. You can return your item within 90 days of purchase for a full refund — no questions asked.

    For full details, please refer to our [Terms & Conditions].
    QUA-X Complex® – Science for Stronger Lashes

    At the heart of QUALASH® lies QUA-X Complex® – an advanced peptide-powered formula designed to naturally stimulate lash growth.

    It works from the root, supporting the growth cycle and strengthening each lash from within. The result? Longer, fuller, and stronger lashes within just a few weeks of consistent use.

    View full details
    QUABROW® Advanced Eyebrow Serum 3.5 ml displayed with its original black packaging box
    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 / 0.12 fl oz - Eyebrow Serum
    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 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

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    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.

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    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.

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    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.

    Qualash® Beauty Blog