#size::full-size #image::vessel
Kosas Big Clean Mascara
Big Lash Energy
Application for Big Clean Mascara 1
Big Clean Mascara Proven Results
Hair Care Serum of Big Clean Mascara
Big Clean Mascara Ingredients
Application for Big Clean Mascara 2
Safe for Sensitive Skin
Application for Big Clean Mascara 3

The Big Clean Mascara

Clean Longwear Mascara

448 total customer reviews
Size9.5 g / 0.34 oz
Intense Black

Free Shipping on US Orders $40+ & Free Returns

Longwear Formula,Big Fluffy Lashes 

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Benefits & Ingredients
Castor Oil

Helps lashes reach full growth potential

Provitamin B5

Helps revive lashes

Biotinoyl Tripeptide-1

Supports healthier, fuller hair

Plant-Based Sugars

Provides longwear without microplastics

Pairs Best With

Air Brow - Tinted
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Volumizing treatment gel

100% Saw Longer, Thicker, Lusher Lashes

Get max volume and separation with the cleanest ingredients. Biodegradable plant-based sugars replace traditionally used microplastics for a longwearing formula + big, fluffy, lash-extension impact.

Big Lash Energy

Natural body-building ingredients and pure, intense pigments deliver a big lash vibe. The oversized curved brush (like a rainbow) has flexible-yet-firm spiraled bristles that volumize, lengthen, separate, and curl lashes all the way up. 

Powerful Hair Care Serum For Clinically Proven Results

The active formula nourishes and protects to support stronger, healthier lashes over time. Every swipe helps lash hairs reach their full growth potential.

See It In Action

A few before & afters of The Big Clean. Your lashes, but bigger.

The Big Clean Mascara before and after 2

Kosas Clean

Cruelty-free and gluten-free. Formulated without: carbon black, acrylates, mineral oil, talc, silicones, fragrance, parabens, sulfates, and phthalates.

Check out our Kosas Clean page for the full list.

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3.5
Rated 3.5 out of 5 stars
Based on 448 reviews
Total 5 star reviews: 130 Total 4 star reviews: 123 Total 3 star reviews: 99 Total 2 star reviews: 51 Total 1 star reviews: 45
56%would recommend this product
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448 reviews
  • H
    Haley
    Verified Buyer
    Age Range 25 - 34
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Black
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    3 weeks ago
    Age Range 25 - 34
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Black
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    Loved it so much I had to have another one!

    I fell in love with with mascara and the formula upon purchasing it the charm store. I didn’t try it out for a while as I was working through a couple other brands and I’m so, so sad I waited as long as I did. It’s only been about a month of use and have been hooked since use two! Loved it so much that I don’t want to find myself without it so I got a backup, thank you for being my go to mascara! Volume, length, no clumping, perfect black and separates my lashes like a dream 😊❤️

    KC Profile picture for Kosas Cosmetics
    Kosas Cosmetics
    2 weeks ago

    Hi Haley! We are so happy you're loving The Big Clean! It looks stunning on you 💖

  • GD
    Gab D.
    Verified Buyer
    Age Range 18 - 24
    Astrology Earth — Taurus; Virgo; Capricorn
    Hair Color Brown
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    2 months ago
    Age Range 18 - 24
    Astrology Earth — Taurus; Virgo; Capricorn
    Hair Color Brown
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    Loving it!

    Totally loving this mascara. AND it is free of toxins. Doesn’t get better than that!

  • KA
    Kathy A.
    Verified Buyer
    Age Range 65+
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color White/Grey
    Skin Tone Medium
    Skin Type Dry
    Recommend Yes -1000%
    2 months ago
    Age Range 65+
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color White/Grey
    Skin Tone Medium
    Skin Type Dry
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    Mascara

    Very nice.

  • BR
    Brittany R.
    Verified Buyer
    Age Range 35 - 44
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Brown
    Skin Tone Light
    Skin Type Dry
    Recommend Yes -1000%
    3 months ago
    Age Range 35 - 44
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Brown
    Skin Tone Light
    Skin Type Dry
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    Gorgeous Lashes

    Received this mascara as part of my “try the website” box and loved how full it made my eyelashes look. It stayed on really well. I traveled for 7 hours the day I tried it and it looked great the entire time. It washed off fairly easy and didn’t leave black streaks across my face like other mascaras do when removing.

  • TS
    Tracey S.
    Verified Buyer
    Age Range 35 - 44
    Astrology Fire — Aries; Leo; Sagittarius
    Hair Color Brown
    Skin Tone Fair
    Skin Type Dry
    Recommend Yes -1000%
    3 months ago
    Age Range 35 - 44
    Astrology Fire — Aries; Leo; Sagittarius
    Hair Color Brown
    Skin Tone Fair
    Skin Type Dry
    Recommend Yes -1000%
    Rated 5 out of 5 stars
    Love this mascara!

    I read that this has been reformulated, but I am new to Kosas so I can’t speak to that. What I can say is this wand and this formula are so easy to use and make my lashes perfectly separated and gorgeous! I have short straight lashes, but this makes them look long and lifted. Works as well as Ilia, but I like this wand better for sure. Easily washes off, no fallout, and no clumps. You can really build it, but I use just one coat and am ready to go.

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