Black Onyx - hero

B Structural Volumizing + Lengthening Mascara

Black Onyx

Black

Black Onyx - hero
4.6
Rated 4.6 out of 5 stars
1,574 Reviews

A biotech-enhanced mascara that delivers 5X fanned-out volume** that's nourishing and lengthening, not clumpy or flaky.

HausTech Powered™ with Vegan B-Silk™ + Rice Protein

A biotech-enhanced mascara that delivers 5X fanned-out volume** that's nourishing and lengthening, not clumpy or flaky.

HausTech Powered™ with Vegan B-Silk™ + Rice Protein

Black Onyx

Black

$29

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The Deep Dive

Introducing a volumizing mascara that's good for your lashes. The world’s first vegan B-Silk™ powered formula, designed to deliver major lash volume and length with a fortifying coat that strengthens with continued use**. Achieve weightless, lifted lashes that last 12 hours. Easy to build and remove.

**Based on a 3rd party clinical study of 100 participants ages 18-55

Fill Weight: 8 ml / 0.27 fl oz

HausTech Powered™ Innovation

Vegan B-Silk™: A bio-engineered polypeptide that wraps lashes in an invisible web-like matrix for soft, flexible hold + buildable volume while strengthening lashes

Rice Protein: Helps to promote hair health

Panthenol: Derived from vitamin B5, known to condition + nourish skin

Benefits

5X fanned-out volume** + flexible hold

Weightless, fiber-free lengthening

Fortifies lashes with continued use to reduce lash loss**

Easy to build + easy to remove

12 hour extended longwear**

All-day longwear

Clump + flake-free

Alcohol-free

Doesn’t smudge or transfer + resists sweat + humidity

Ophthalmologist tested + hypoallergenic

Safe for sensitive eyes + contact lens wearers

Made in Italy

Created with Kindness: Clean, Cruelty-Free, and Vegan™

Artistry Tips

Coat lashes from root to tip and build to your desired level.

Our custom, dual-sided brush was artfully engineered for all lash types and eye shapes. Use the flat side to deposit pigment and the hourglass side for fanned-out volume.

Formula stays soft and flexible throughout application so you can build natural to fanned-out volume and length. Easy to build and easy to remove.

Pro Tips

Application tips and tricks from Sarah Tanno, Haus Labs' Global Artistry Director and Lady Gaga's Makeup Artist.

"Since this innovative formula stays soft and flexible throughout the application process, you can build it to your desired volume level without it getting clumpy or flaky. Wiggle the flat side of the custom dual-sided brush at the base of your lashes to load pigment, then roll through the tips with the hourglass side. 1-2 layers will give easy, everyday volume—amp up your look with 3-4 layers for more dramatic, fluttery volume. Don't forget to use the tapered tip of the brush to reach those tiny lashes at the inner and outer corners of the eyes."

Black Onyx

Aqua (Water, Eau), Glyceryl Stearate, C18-36 Acid Triglyceride, Synthetic Wax, Copernicia Cerifera Cera (Copernicia Cerifera (Carnauba) Wax, Cire de Carnauba), Ricinus Communis (Castor) Seed Oil, Acrylates Copolymer, VP/Hexadecene Copolymer, Stearic Acid, Glycerin, Palmitic Acid, Sr-(Spider Polypeptide-1 Oligopeptide-178)*, Pentylene Glycol, Panthenol, Synthetic Beeswax, Hydrolyzed Rice Protein, Proline, Tocopherol, Arginine, Xanthan Gum, Octyldodecanol, Hydroxyacetophenone, Ethylhexylglycerin, Propanediol, Sodium PCA, Phenoxyethanol, Citric Acid, Potassium Sorbate, Sodium Benzoate, Sodium Hydroxide, CI 77499 (Iron Oxides), CI 77007 (Ultramarines)

*Vegan B-Silk™

Fill Weight: 8 ml / 0.27 fl oz

HausTech Powered™ Innovation

Vegan B-Silk™: A bio-engineered polypeptide that wraps lashes in an invisible web-like matrix for soft, flexible hold + buildable volume while strengthening lashes

Rice Protein: Helps to promote hair health

Panthenol: Derived from vitamin B5, known to condition + nourish skin

Benefits

5X fanned-out volume** + flexible hold

Weightless, fiber-free lengthening

Fortifies lashes with continued use to reduce lash loss**

Easy to build + easy to remove

12 hour extended longwear**

All-day longwear

Clump + flake-free

Alcohol-free

Doesn’t smudge or transfer + resists sweat + humidity

Ophthalmologist tested + hypoallergenic

Safe for sensitive eyes + contact lens wearers

Made in Italy

Created with Kindness: Clean, Cruelty-Free, and Vegan™


**Based on a 3rd party clinical study of 100 participants ages 18-55

THIS CLEAN MASCARA PASSES THE TEST*

Immediately after 1 use:

98% agree mascara provides a rich, intense black color

97% agree mascara is volumizing and makes lashes look longer

91% agree this mascara does not clump


After 12 hours:

95% agree mascara is long-wearing and lashes stayed lifted

92% agree mascara feels weightless


After 4 weeks:

96% agree lashes feel conditioned with continued use

92% agree lashes appear healthier with continued use


*Based on a 3rd party consumer perception study of 100 participants ages 18-55

Videos

THE WORLD'S FIRST VEGAN B-SILK™ POWERED MASCARA

THE WORLD'S FIRST VEGAN B-SILK™ POWERED MASCARA

5X FANNED-OUT VOLUME
Buildable, feathery + weightless

SOFT, FLEXIBLE HOLD
Never clumpy or flaky

STRENGTHENING
Fortifies with continued use

Looks from our Community

Reviews

4.6
Rated 4.6 out of 5 stars
Based on 1,574 reviews
1,574 reviews
  • autumn
    I recommend this product
    Rated 5 out of 5 stars
    6/18/26
    5 Stars

    Love these both

  • Katie C.
    Verified Buyer
    I recommend this product
    Age 31-40
    Skin Tone Light
    Skin Type Dry
    Rated 5 out of 5 stars
    6/16/26
    Bold and beautiful

    I got this as a free bee for buying so much and never before have I been so grateful to a free gift! it is my new fav mascara and goes on so smoothly. so far all the products ive recieved are dynamite.

  • Chia C. A. L.
    Verified Buyer
    I recommend this product
    Age 31-40
    Skin Tone Light
    Skin Type Normal
    Rated 5 out of 5 stars
    6/15/26
    best mascara I've tried in my life

    I have been searching for a nice mascara that does not melt for my whole life, and over the years I have shifted to only crulety free products and brands - this mascara has the quality and does not melt out throughout a long day! Love it

    HL Profile picture for Haus Labs
    Haus Labs
    6/16/26

    Thank you so much for taking the time to share your experience with the B Structural Volumizing + Lengthening Mascara, Chia!

    We are absolutely thrilled to hear that this is the best mascara you've tried in your life - what an incredible honor that means to us! It's wonderful to know that after your long search, you've finally found the perfect mascara that delivers both the quality you were looking for and stays put throughout your entire day without melting.

    We're so excited that you've discovered how beautifully our formula aligns with your values too, giving you that amazing performance while being cruelty-free! It means the world to us that you experienced exactly what we designed - a mascara that truly delivers on all fronts.

    We're so grateful for the opportunity to create with you!

  • Debra C.
    Verified Buyer
    I recommend this product
    Age Over 60
    Skin Tone Medium
    Skin Type Dry
    Rated 5 out of 5 stars
    6/13/26
    B Structural Volumizing + Lengthening Mascara ALL MASCARAS ARE NOT CREATED EQUAL!

    THIS MASCARA ALTHOUGH PRICEY DELIVERS ON IT'S PROMISE. IT NATURALLY LENGTHENS WITHOUT"GLOBS" AND BUILD UP ON LASHES. IT SIMPLY DOES NOT SMEAR AND COMES OFF WITH REMOVER EASILY. NATURAL.

  • Briana S.
    Verified Buyer
    I recommend this product
    Age 31-40
    Skin Tone Medium
    Skin Type Combination
    Rated 5 out of 5 stars
    6/13/26
    Amazing

    This mascara is amazing. It gives that false lashes look! I had to have it after getting a mini in my ipsy.