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KosasSport Chemistry AHA Serum Deodorant

20 total reviews

Regular price
$ 16.00
Regular price
Sale price
$ 16.00
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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
Kosas KosasSport Chemistry Deodorant - Serene Clean - AILLEA
KosasSport Chemistry AHA Serum Deodorant - AILLEA
KosasSport Chemistry AHA Serum Deodorant - AILLEA
Kosas KosasSport Chemistry Deodorant - Fragrance Free - AILLEA
KosasSport Chemistry AHA Serum Deodorant - AILLEA

Customer Reviews

Based on 20 reviews
Works great as an exfoliator/treatment, slight rash

I have mixed feelings on this deodorant. When I apply it, I do not have a rash on my actual armpit, but for about 30 minutes post application, I have a red halo on the skin around my armpit. It disappears fully until the next application. It works to reduce odor for at least a few hours. I would not rely on this for a hot summer day out in public, nor would I rely on this at the gym. I think this is great to use as a base deodorant for the day, and then use a more concentrated one later for the gym. I would use this deodorant if wearing an important or delicate outfit that cannot risk a deodorant stain. The thing I really like about this deodorant is that it really conditioned my armpits like an exfoliator or treatment. All of those little shave bumps disappear. My armpits are soft, smooth, and the skin is bright. I didn't notice it when I was using it, but I noticed it when I switched to a different product afterwards.

Actually Works!

I switched from Humble deodorant to Kosas about a month ago and will never go back (I’ve also used Agent Nateur as well). Kosas is hands down the best and most effective for smell (I still sweat but not a ton that doesn’t really bother me). Ten out of ten would recommend and will purchase again!

It works!

I am impressed about this product. It works well throughout the day even this summer! And the packaging is super convenient.

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…