#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

479 total customer reviews
Size9.5 g / 0.34 oz
Intense Black
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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
✨ Friends & Family Sale - 20% Off ✨

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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3.6
Rated 3.6 out of 5 stars
Based on 479 reviews
Total 5 star reviews: 148 Total 4 star reviews: 127 Total 3 star reviews: 103 Total 2 star reviews: 55 Total 1 star reviews: 46
53%would recommend this product
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479 reviews
  • A
    Ashley
    Verified Buyer
    3 weeks ago
    Rated 5 out of 5 stars
    5 Stars

    I love this mascara!

  • L
    LINDA
    Verified Buyer
    3 weeks ago
    Rated 5 out of 5 stars
    5 Stars

    Love it 😍

  • 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%
    1 month 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
    1 month ago

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

  • D
    Denelle
    Verified Buyer
    2 months ago
    Rated 5 out of 5 stars
    5 Stars

    Great product

  • R
    Rori
    Verified Buyer
    2 months ago
    Rated 5 out of 5 stars
    5 Stars

    Great for length / volume for and a natural look. I’ve been looking for cleaner products to replace my current favorites. The only complaint is the smudging. I live in FL - and it’s hot and by end of the day I have smudges underneath my eyes. That’s the only downside in my opinion…

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