The Big Clean Mascara
Clean Longwear Mascara
Free Shipping on US Orders $40+ & Free Returns
Longwear Formula,Big Fluffy Lashes
Show More- Castor Oil
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Helps lashes reach full growth potential
- Provitamin B5
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Helps revive lashes
- Biotinoyl Tripeptide-1
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Supports healthier, fuller hair
- Plant-Based Sugars
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Provides longwear without microplastics
Pairs Best With
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.
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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- HHaleyVerified BuyerAge Range 25 - 34Astrology Air — Gemini; Libra; AquariusHair Color BlackSkin Tone MediumSkin Type CombinationRecommend Yes -1000%3 weeks agoAge Range 25 - 34Astrology Air — Gemini; Libra; AquariusHair Color BlackSkin Tone MediumSkin Type CombinationRecommend Yes -1000%Rated 5 out of 5 starsLoved 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 😊❤️
KCKosas Cosmetics2 weeks agoHi Haley! We are so happy you're loving The Big Clean! It looks stunning on you 💖
- GDGab D.Verified BuyerAge Range 18 - 24Astrology Earth — Taurus; Virgo; CapricornHair Color BrownSkin Tone MediumSkin Type CombinationRecommend Yes -1000%2 months agoAge Range 18 - 24Astrology Earth — Taurus; Virgo; CapricornHair Color BrownSkin Tone MediumSkin Type CombinationRecommend Yes -1000%Rated 5 out of 5 starsLoving it!
Totally loving this mascara. AND it is free of toxins. Doesn’t get better than that!
- KAKathy A.Verified BuyerAge Range 65+Astrology Air — Gemini; Libra; AquariusHair Color White/GreySkin Tone MediumSkin Type DryRecommend Yes -1000%2 months agoAge Range 65+Astrology Air — Gemini; Libra; AquariusHair Color White/GreySkin Tone MediumSkin Type DryRecommend Yes -1000%Rated 5 out of 5 starsMascara
Very nice.
- BRBrittany R.Verified BuyerAge Range 35 - 44Astrology Air — Gemini; Libra; AquariusHair Color BrownSkin Tone LightSkin Type DryRecommend Yes -1000%3 months agoAge Range 35 - 44Astrology Air — Gemini; Libra; AquariusHair Color BrownSkin Tone LightSkin Type DryRecommend Yes -1000%Rated 5 out of 5 starsGorgeous 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.
- TSTracey S.Verified BuyerAge Range 35 - 44Astrology Fire — Aries; Leo; SagittariusHair Color BrownSkin Tone FairSkin Type DryRecommend Yes -1000%3 months agoAge Range 35 - 44Astrology Fire — Aries; Leo; SagittariusHair Color BrownSkin Tone FairSkin Type DryRecommend Yes -1000%Rated 5 out of 5 starsLove 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.