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Chemistry Deodorant Fragrance Free
Buy 3+ & SAVE 10%
Advantage of Chemistry Deodorant
Serene Clean Lightweight Serum
Chemistry Deodorant Nutrients
No Chemical Added
Kosasport Tested
Kosasport Scents Available
Kosasport Instruction
Kosasport Products

    Chemistry Deodorant

    BO-Fighting AHA Serum

    1845 total customer reviews

    Fragrance Free

    Unscented
    Scent
    Buy 3+ & save 10%
    Mix and match three or more in any scent.
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    Free Shipping on US Orders $40+ • Free Returns and Exchanges
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    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.

    Save with Sets
    Build-Your-Own Kosas Kit Customize Your Kit of 3 Full-Size Products
    Build-your-own Kosas Kit
    Build-Your-Own Kosas Kit
    Customize Your Kit of 3 Full-Size Products
    Customize for Build-Your-Own Kosas Kit

    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.

    Kosas Clean Badge

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        4.3
        Rated 4.3 out of 5 stars
        Based on 1,845 reviews
        Total 5 star reviews: 1.3k Total 4 star reviews: 188 Total 3 star reviews: 85 Total 2 star reviews: 91 Total 1 star reviews: 175
        74%would recommend this product
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        1,845 reviews
        • ES
          Emily S.
          Age Range 35 - 44
          Astrology Water — Cancer; Scorpio; Pisces
          Hair Color Brown
          Skin Tone Light
          Skin Type Dry
          Recommend Yes -1000%
          Yesterday
          Age Range 35 - 44
          Astrology Water — Cancer; Scorpio; Pisces
          Hair Color Brown
          Skin Tone Light
          Skin Type Dry
          Recommend Yes -1000%
          Rated 5 out of 5 stars
          I regret cheating!!

          I was trying to save a buck and bought a different natural deodorant (brand rhymes with love) and I hate it! I’m RUNNING BACK to this deodorant with open arms. The formula is clear, light and never leaves any residue. I find that other natural deodorants actually increase my BO and make it worse, NOT THIS ONE! I’m never buying another brand ever again, Kosas user for life <3 Don’t make my mistake and waste money, just buy this deodorant!

          Was this helpful?
        • B
          Bridget
          1 week ago
          Rated 5 out of 5 stars
          5 Stars

          Great product - actually works & doesn't irritate my super sensitive skin!

          Was this helpful?
        • K
          Kera
          Age Range 25 - 34
          Astrology Air — Gemini; Libra; Aquarius
          Skin Tone Dark
          Skin Type Oily
          Recommend Yes -1000%
          1 week ago
          Age Range 25 - 34
          Astrology Air — Gemini; Libra; Aquarius
          Skin Tone Dark
          Skin Type Oily
          Recommend Yes -1000%
          Rated 5 out of 5 stars
          Life Changing

          I honestly can’t live without this deodorant! I never smell, haven’t experienced ingrown hairs, and it doesn't leave a mess. Highly recommend

          Was this helpful?
        • S
          Summer
          3 weeks ago
          Rated 5 out of 5 stars
          5 Stars

          This deodorant is amazing. Every other natural deodorant I have tried is inferior. I also have been getting zero ingrown hairs in my pits since starting to use this.

          First I got a sample of Serene Clean, and I upgraded to a full bottle of Beach Clean because I love jasmine, sandalwood, and vanilla. Unfortunately I don’t think it smells much like any of those things, and I preferred the subtle scent of Serene Clean. But, this one is not bad, it is also quite subtle, and it really does work super well. Even my anxious coffee sweats don’t stink anymore! I will purchase the Serene Clean scent next though.

          Was this helpful?
        • AD
          Angela Darlene J.
          Verified Buyer
          Age Range 55 - 64
          Hair Color Brown
          Skin Tone Light
          Skin Type Normal
          Recommend Yes -1000%
          3 weeks ago
          Age Range 55 - 64
          Hair Color Brown
          Skin Tone Light
          Skin Type Normal
          Recommend Yes -1000%
          Rated 5 out of 5 stars
          I smell good!

          This stuff works, when so many others didn’t!!!

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