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.
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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I have been using this mascara for well over a year+ and absolutely LOVE IT.....I have turned so many people onto it when asked for a recommendation -- I've been in the beauty industry for quite some time and have to say this one is impressive and the fact that it's clean is the cherry 🍒 on top!!
- FFFAIRON F.Verified BuyerAstrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone MediumSkin Type NormalRecommend Yes -1000%4 weeks agoAstrology Water — Cancer; Scorpio; PiscesHair Color BrownSkin Tone MediumSkin Type NormalRecommend Yes -1000%Rated 5 out of 5 starsI cannot tell a lie…
My eyelashes aren’t long or full. But, then I used Big Clean Mascara and they looked just right! I would have given it 5 stars but the brush wand broke. Kudos to Team Kosas, though, for their rapid response and outstanding customer service.KCKosas Cosmetics3 weeks ago
We're so happy we're able to help, Fairon! 💗
- AAshley2 months agoRated 5 out of 5 stars5 Stars
I love this mascara!
- LLINDA3 months agoRated 5 out of 5 stars5 Stars
Love it 😍
- HHaleyVerified BuyerAge Range 25 - 34Astrology Air — Gemini; Libra; AquariusHair Color BlackSkin Tone MediumSkin Type CombinationRecommend Yes -1000%3 months 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 Cosmetics3 months ago
Hi Haley! We are so happy you're loving The Big Clean! It looks stunning on you 💖