Your pits need an AHA moment
A clean stain-free serum deodorant with a unique blend of AHAs for the ultimate BO-fighting treatment. Bonus points: soothes skin, visibly brightens, and helps with ingrown hairs. No aluminum. No baking soda. Only pit-nourishing ingredients allowed.
- Shikimic Acid
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Natural deodorizer
- Mandelic Acid
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Helps address dullness and discoloration
- Lactic Acid
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Exfoliates and holds in moisture
- Pure Aloe Vera Juice
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Moisturizes + soothes
- Hyaluronic Acid
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Hydrates, softens + smoothes skin
- Highly Bioactive Peptide
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skin-conditioning + firming
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Use it everyday - just shake, roll, and go. Gently squeeze for more serum.
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Maximum benefits kick in after one week of use.
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Pair it with super hydrating Lipfuel, also made for the made-for-action Kosasport collection.
LipFuel Lip Balm Hyaluronic Acid Lip Balm
LipFuel Lip BalmHyaluronic Acid Lip Balm506 total customer reviews
TotalBeauty Awards (2022)
Into the Gloss Top 25 list (2022)
Into the Gloss Top 25 list (2021)
ELLE Future of Beauty Awards (2020)
Refinery29 Beauty Innovator Awards (2020)
Different Approach To BO
We want to treat BO where it starts. Our blend of AHAs (Alpha Hydroxy Acids) helps lower the pH in your pit so it’s harder for odor-causing bacteria to live there. Less bacteria = less smell.
Deodorant For Skincare Freaks
The AHA blend also brightens and exfoliates to help prevent uncomfy ingrown hairs. Additional skincare ingredients work to moisturize and soothe the sensitive skin of your pit too.
Clean Deodorant That Isn’t Annoying
The lightweight serum dries quickly and doesn’t leave a residue or stain on your clothes. The cooling roller ball is also super easy and feels sooo good going on your skin.
Kosas Clean
Vegan, cruelty-free, and gluten-free. Formulated without: aluminum, baking soda, mineral oil, talc, silicones, fragrance, parabens, sulfates, and phthalates.
Check out our Kosas Clean page for the full list.
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Frequently Asked Questions
You've got questions, we've got answers
What is Chemistry?
Chemistry is a clean, stain-free serum deodorant that features a unique AHA blend for the ultimate odor-fighting treatment. Bonus: Soothes skin, visibly brightens, and helps prevent ingrown hairs.
What does it do?
Chemistry is a different approach to BO - we don’t just want to mask smell, we want to treat it where it starts. Our specific AHA blend helps create a pH environment where odor-causing bacteria can’t survive - leaving you feeling fresh, clean, and ready for anything.
How does it act like skincare?
Our deodorant does more: the AHA blend keeps you from smelling, but it also visibly brightens the darker underarm area and helps with ingrown hairs. No aluminum. No baking soda. Only skin-nourishing ingredients allowed.
What makes Chemistry different from other clean deodorants?
Chemistry is a clean deodorant that isn’t annoying. The thin, non-sticky serum dries quickly and doesn’t leave a residue or stain on your clothing. The cooling roller ball is so easy and it actually feels good going on your skin.
How do I apply?
Shake, roll, and go - easy! Gently squeeze for more serum.
How long is the wear?
24-hour wear - we like to say it lasts from shower to shower.
- SSSugdiancargo S.Verified BuyerAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BlackSkin Tone MediumSkin Type OilyRecommend Yes -1000%1 week agoAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BlackSkin Tone MediumSkin Type OilyRecommend Yes -1000%Rated 5 out of 5 starsLove
Obsessed
- SSSugdiancargo S.Verified BuyerAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BlackSkin Tone MediumSkin Type OilyRecommend Yes -1000%1 week agoAge Range 25 - 34Astrology Water — Cancer; Scorpio; PiscesHair Color BlackSkin Tone MediumSkin Type OilyRecommend Yes -1000%Rated 5 out of 5 starsLove
Love
- AOamanda o.Verified BuyerAge Range 45 - 54Hair Color BrownSkin Tone LightSkin Type DryRecommend Yes -1000%2 weeks agoAge Range 45 - 54Hair Color BrownSkin Tone LightSkin Type DryRecommend Yes -1000%Rated 5 out of 5 starsFirst natural deodorant that works
I've tried them all. SO glad to have found one that works!
- BBAge Range 25 - 34Astrology Fire — Aries; Leo; SagittariusRecommend Yes -1000%2 weeks agoAge Range 25 - 34Astrology Fire — Aries; Leo; SagittariusRecommend Yes -1000%Rated 5 out of 5 starsRebuy FOREVER
This is the best deodorant of all time!!! I don’t stink, ever with this deo. I even was a bridesmaid this end of summer-SUPER hot and was a bit self conscious of not switching back to aluminum Deo but I had my friend smell test me and even she swears up and down I had 0 armpit odor. This stuff is legit!!! I love the serene clean scent over the beachy one. Only downside is that Kosas subscription doesn’t have a 1 monthly frequency option, only 2,3, or 4 months and I always run out righttttttt at the end of the 2 months when I’m waiting for the package so I have to order from Amazon which I don’t prefer to do at all. Consider giving more frequency options! Otherwise a great product!! Never everrrrrr discontinue it please!
- JJordan1 month agoRated 5 out of 5 stars5 Stars
i thought at first i didnt like the smell but when you put it on it gives a nice vanilla scent and i bought 2 more aha
- AGAshlyn G.Verified ReviewerAge Range 25 - 34Astrology Air — Gemini; Libra; AquariusHair Color BrownSkin Tone MediumSkin Type OilyRecommend Yes -1000%1 month agoAge Range 25 - 34Astrology Air — Gemini; Libra; AquariusHair Color BrownSkin Tone MediumSkin Type OilyRecommend Yes -1000%Rated 5 out of 5 starsLIQUID GOLD
I have been using this deodorant for close to two years now. I WILL NOT USE ANYTHING ELSE! I will put this on in the am, work all day, go to my CrossFit class (do not reapply before class), workout out in an open air gym in the middle of summer, drip sweat, AND I HAVE NO SMELL.
- PPJ.DeliaAge Range 55 - 64Astrology Fire — Aries; Leo; SagittariusHair Color BlondSkin Tone LightSkin Type NormalRecommend Yes -1000%2 months agoAge Range 55 - 64Astrology Fire — Aries; Leo; SagittariusHair Color BlondSkin Tone LightSkin Type NormalRecommend Yes -1000%Rated 5 out of 5 starsMake a travel Size!
I love this deodorant!
wear none other these days.
Unfortunately, I can't take it with me traveling. Please make a mini!
- JPJulianna P.Verified BuyerAge Range 18 - 24Astrology Fire — Aries; Leo; SagittariusHair Color BrownSkin Tone LightSkin Type CombinationRecommend Yes -1000%2 months agoAge Range 18 - 24Astrology Fire — Aries; Leo; SagittariusHair Color BrownSkin Tone LightSkin Type CombinationRecommend Yes -1000%Rated 5 out of 5 starsi love it
my favorite
- GGgennesis g.Verified BuyerAge Range 35 - 44Astrology Earth — Taurus; Virgo; CapricornHair Color BlackSkin Tone MediumSkin Type CombinationRecommend Yes -1000%2 months agoAge Range 35 - 44Astrology Earth — Taurus; Virgo; CapricornHair Color BlackSkin Tone MediumSkin Type CombinationRecommend Yes -1000%Rated 5 out of 5 starsHands down: the Grail of deodorants.
I have to applaud your formula. I have tried so many products at wide price ranges and manufacturers from France, Korea and Japan including the USA. This is by far the best deodorant that works for me. I have recommended it to everyone. I’m not an influencer but as someone with hyperpigmentation with scarring, highly sensitive skin as well as needing a strong product postpartum, this Kosas deodorant protects my skin barrier and noticeably works. My friend going through menopause feels the same way. I’ve turned all my girlfriends onto it.
Competitors like Lume or House of Balance have given me rashes so I would waste my cash, or ones mainstream are more scent-masking and will not effectively treat body odor so if I miss an application unwanted smells would come back just as strong. I could tell the efficacy of this Kosas formula is targeted toward minimizing odor bacteria because if I forget to apply for a day like if I am extremely busy, I still smell nice.
Thank you for making your product. I can’t wait until my haul comes in the mail!
Please make travel sizes and perhaps a better applicator like a pump—not a rollerball. I would prefer to be able to apply it without touching the applicator to my skin.
- EErinVerified BuyerAge Range 35 - 44Astrology Fire — Aries; Leo; SagittariusSkin Tone LightSkin Type NormalRecommend Yes -1000%2 months agoAge Range 35 - 44Astrology Fire — Aries; Leo; SagittariusSkin Tone LightSkin Type NormalRecommend Yes -1000%Rated 5 out of 5 starsPlease add a travel-size version to purchase individually!!
This is the only non-aluminum deodorant that hasn't given me a rash. Doesn't stop sweating, but it Definitely stops smell. My only disappointment is that despite begging for years, Kosas refuses to sell small travel-size versions of Chemistry Deodorant individually; you have to buy them as part of an expensive set with a bunch of other products. I wish I could just buy a travel-size version individually, I'd buy so many!
