The Big Clean Mascara - Full-size
The Big Clean Mascara - Mini
The Big Clean Mascara
The Big Clean Mascara
The Big Clean Mascara
The Big Clean Mascara
The Big Clean Mascara
The Big Clean Mascara
The Big Clean Mascara
The Big Clean Mascara
The Big Clean Mascara

The Big Clean Mascara

Clean Longwear Mascara

 (425)
Select Size:
Intense Black

Free Shipping on US Orders $40+ & Free Returns

Longwear Formula,Big Fluffy Lashes 

Show More
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

Review Highlights
Perfect!!

I absolutely love this mascara. It made my non existent lashes reappear and the bottom baby lashes pop!!! It lasted all day without any smudges. Dare I say I found my Holy Grail of Mascara 

Best clean mascara you can buy!

My new favorite mascara! I’ve noticed that my eyelashes are longer (I wasn’t sure that was possible!), thicker, and super fluffy! The formula is clean so it’s gentle on my eyes (even with contacts), doesn’t clump, and lasts all day long. Not to mention, it’s formulated to help with eyelash growth. It has everything you need and more in a mascara.

My Lashes Have Never Looked Better

The Big Clean is my new favorite go to mascara. It has everything I’m looking for in an everyday staple. Environmentally conscientious. Long wearing. Lash thickening. I would ten thousand percent recommend this product to any and every one and I will continue to purchase this mascara in the future as well.

Pairs Best With

#image::vessel
Lip Gloss + Gel Eyeshadow + Blush & Highlighter Duo

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.

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.

You might also like

3.5
Rated 3.5 stars
Based on 425 reviews
Total 5 star reviews: 117 Total 4 star reviews: 122 Total 3 star reviews: 93 Total 2 star reviews: 50 Total 1 star reviews: 43
56%would recommend this product
425 reviews
  • DT
    desiree t.
    Verified Buyer
    Age Range 35 - 44
    Astrology Water — Cancer; Scorpio; Pisces
    Hair Color Brown
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    3 weeks ago
    Age Range 35 - 44
    Astrology Water — Cancer; Scorpio; Pisces
    Hair Color Brown
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    Rated 4 stars
    Best clean mascara around

    I have tried SO many clean mascaras..and this is probably the best truly clean one there is! Not like the brands that claim to be clean, this one actually is clean so that is amazing. My only issue is, I need to purchase at least 1 a month and it gets weird so fast.. it doesn’t get super dry but it gets very thick and flakes easy when that happens. But since ai am

    Allergic to so much and I get the best results with this, I deal with that. If I wasn’t allergic to ingredients I would get another product. But this is the absolute best if you have sensitivity to mascara.

  • M
    Maya
    Verified Reviewer
    Age Range 35 - 44
    Astrology Fire — Aries; Leo; Sagittarius
    Hair Color Black
    Skin Tone Deep
    Skin Type Normal
    Recommend Nope - don’t think so
    4 weeks ago
    Age Range 35 - 44
    Astrology Fire — Aries; Leo; Sagittarius
    Hair Color Black
    Skin Tone Deep
    Skin Type Normal
    Recommend Nope - don’t think so
    Rated 2 stars
    Looks good at first, but smudges terribly

    Disappointed overall with this product. It looks great at first application... very fluffy, separated lashes that hold a curl well. But it smudges quickly and easily. I apply only to top lashes, but would still have smudges after a short amount of time. I tried it for about a month before giving up and will not repurchase it.

    KC Profile picture for Kosas Cosmetics
    Kosas Cosmetics
    3 weeks ago

    Hi Maya, we're so sorry to hear this was your experience. Thank you for giving it a try!

  • KS
    Kelsie S.
    Verified Buyer
    Age Range 25 - 34
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Brown
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    1 month ago
    Age Range 25 - 34
    Astrology Air — Gemini; Libra; Aquarius
    Hair Color Brown
    Skin Tone Medium
    Skin Type Combination
    Recommend Yes -1000%
    Rated 4 stars
    Amazing!!

    I love how big it makes my lashes, it’s not clumpy

  • F
    Faith
    Age Range 25 - 34
    Astrology Water — Cancer; Scorpio; Pisces
    Hair Color Brown
    Skin Tone Light
    Skin Type Combination
    Recommend Nope - don’t think so
    1 month ago
    Age Range 25 - 34
    Astrology Water — Cancer; Scorpio; Pisces
    Hair Color Brown
    Skin Tone Light
    Skin Type Combination
    Recommend Nope - don’t think so
    Rated 1 stars
    Terrible 🥴🥴

    The worst fallout I have ever had, wasn’t even an hour :( it made my lashes look so great at first and then awful!

    KC Profile picture for Kosas Cosmetics
    Kosas Cosmetics
    3 weeks ago

    Hi Faith, we are sorry to hear this was your experience! Please email us at LetsChat@Kosas.com so we can assist.

  • R
    Robyn
    Verified Buyer
    Age Range 45 - 54
    Astrology Fire — Aries; Leo; Sagittarius
    Hair Color Brown
    Skin Tone Medium
    Skin Type Normal
    Recommend Nope - don’t think so
    1 month ago
    Age Range 45 - 54
    Astrology Fire — Aries; Leo; Sagittarius
    Hair Color Brown
    Skin Tone Medium
    Skin Type Normal
    Recommend Nope - don’t think so
    Rated 3 stars
    lumpy lashes

    This mascara seems lumpy and clumpy on my lashes. I wanted to love it since I've had great results with other Kosas products and I'm trying to go "clean" on all beauty products, but this one needs to be reformulated in my opinion.

Reviews LoadedReviews Added