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    KosasSport Chemistry AHA Serum Deodorant



    A clean, stain-free deodorant with a unique blend of AHAs for the ultimate BO-fighting treatment. Bonus points: soothes skin, visibly brightens, and helps prevent ingrown hairs. No aluminum. No baking soda. 

    What it does:

    • Different approach to BO:We don’t just want to mask smell, we want to address it where it starts. Our specific AHA blend helps create a pH environment where it’s harder for odor-causing bacteria to survive—leaving you feeling fresh, clean, and ready for anything.
    • Deodorant for skincare freaks:Our deodorant does more: The AHA blend keeps you from smelling, but it also visibly brightens the darker under arm area and helps with ingrown hairs. No aluminum. No baking soda. Only skin-nourishing ingredients allowed.
    • 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.


    Key Ingredients:

    AHA Blend:

    Shikimic Acid: A natural deodorizer derived from star anise, known for antimicrobial properties + naturally helps minimize odor

    Mandelic Acid: Helps address dullness and discoloration, derived from bitter almonds

    Lactic Acid: Exfoliates while helping to improve the skin’s natural moisture factor

    Aloe Vera Juice: A potent moisturizer that invigorates and helps soothe the skin

    Hyaluronic Acid: Hydrates, softens and smoothes the skin

    • This is a clean light weight serum deodorant that dries quickly and doesn't leave a residue on your clothes.
    • Unique blend of AHA's create the ultimate BO-fighting treatment by creating a pH environment where odor causing bacteria can't live.
    • Advanced formula soothes skin, brightens, and helps prevent ingrown hairs. 
    • Only pit-nourishing ingredients allowed. No toxic aluminum or potentially irritating baking soda. 
    • Available in Fragrance Free and Serene Clean (Lightly scented by low concentration of orange, lavender, vetiver and yang yang essential oils.)

    How to use

    • Shake, roll, and apply liberally. Apply daily to clean, dry skin.
    • You may gently squeeze packaging for additional product. 
    • Apply under arms only. Do not apply to broken skin. If irritation occurs, discontinue use. 

    What's in it?

    • Serene Clean: water, aloe barbadensis leaf juice, mandelic acid, glycerin, shikimic acid, lactic acid, palmitoyl sodium hyaluronate, citric acid, tartaric acid, polyglyceryl-4 cocoate, simmondsia chinensis (jojoba) seed oil, citrus reticulata (tangerine) peel oil, cananga odorata flower oil, citrus aurantium amara (bitter orange) flower oil, xanthan gum, sodium hydroxide, potassium sorbate, sodium benzoate
    • Unscented: water, aloe barbadensis leaf juice, mandelic acid, glycerin, shikimic acid, lactic acid, palmitoyl sodium hyaluronate, citric acid, tartaric acid, xanthan gum, sodium hydroxide, potassium sorbate, sodium benzoate

    2.4 oz

    Gluten Free

    Customer Reviews

    Based on 17 reviews
    Didn’t work for me at all

    I tried it a few times, and found I actually smelled like worse BO than I’ve had before. I tried using different amounts, putting it on at different times of day, and reapplying. Each time I could smell the BO after a short time. I really wanted it to work.

    Ariana Lebovits DOnofrio
    New formula?

    I’ve been using this for over a year with no negative effects, but the newest tube I purchased has been giving me a rash around my underarms. Similar to what happens when I use a formula with baking soda. Not sure if I will repurchase in the future, hopefully it stops irritating my skin…

    Whoa wtf?!

    Look, I decided to switch deos bc the natural one I've been wearing for 5 years started to fail. There is literally nothing worse than sitting down in a work meeting and realizing you can smell yourself. IG, being the omniscient presence it is, seemed to know my very thoughts and presented me with a kosas ad. Everyone seemed to love it so...why not? I have been using this deo for a week and even after 48 hours without a shower on one fails! I'm not even an influencer but if you want to pay me to promote this product, I will. @truly_alive on IG!

    Claudia Cassis
    It’s ok

    I’m not sure how effective it is from protecting against smells. Also I wasn’t super fond of the smell of the product itself.

    Alexandra Alchin
    Love love

    Love how easily it goes on, smell, texture. My only thing is if you sweat like I do the scented version feels needed haha.

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