Chemistry Deodorant - Aluminium and Baking Soda Free + BO-Fighting AHA Serum that Exfoliates, Softens, and Nourishes the Skin, (Beachy Clean)

Best deodorant I've ever used. Been using it for a few weeks and it's been great. The scent is extremely subtle and is gone very quickly. So it's not the kind of deodorant that masks odors. It just straight up prevents them from existing. Anti-perspirants don't really work for me and they tend to stain my clothes, so I opted for deodorants years ago. Baking soda irritates my skin, so can't do those. Also get irritated by certain fragrances. Kosas doesn't irritate my skin. And I sweat plenty - workouts, yard work, sun bathing - I've never caught any foul odors. I rarely go 24 hours without a shower, so I can't vouch for any extended protection. But I've used several acidified deodorants - even stridex pads - and this is the best. The last acidified deodorant I used (lume) didn't work for long, maybe a few hours, and the fragrances were nauseating. Kosas is the real deal. The only cons I can think of are: shaking - you need to shake it, since the mixture likely settles or separates in the bottle. Not a big deal. Also, it's a liquid serum. It's gonna be wet. I apply a light layer, and give it 60 seconds - it's usually dry by then. Maybe a tad sticky, but I don't notice - I'm a guy, so maybe the hair helps mask that. The biggest knock I have is the cost. I thought about docking a star for the price, but it works too good. If I ever find a cheaper option that works this well, I'll jump ship in a heartbeat. But for now, I'm sticking with Kosas.

This is the most fabulous deodorant I’ve ever had. It keeps me from sweating and smelling for days. they seem expensive however it lasts about five times longer than regular deodorant. It’s worth every penny. I tried a competitor in a glass container they failed miserably. This is the ultimate best deodorant ever created hands-down. I would only ask that there are more scents a vanilla would be nice. I've been using this deodorant for years now I’m so thrilled It’s now on Amazon.

I’ve struggled with underarm odor my entire life and this is the first aluminum-free, natural-ingredient deodorant that has truly worked for me. I’ve tried so many, and this one is hands down the best—I won’t use anything else. It has a very subtle scent, but what really impressed me is how effective it is: I only need to apply it a couple of times a week rather than daily like traditional deodorants. It goes on wet but dries quickly, which is a huge plus. I never write reviews but this deodorant was a life changer for me - buy it now!

This deodorant lasted pretty long but did let some of the smell through. For the price I’d expect 100% coverage value. The texture is very wet so it takes a second to dry. It’s pretty good, but Drunk Elephant’s Sweet Pitti is better

Ok, this is the best deodorant! I am a dental hygienist, which means I spend my days with my armpits very close to people's faces. It gets hot when you're wearing a mask, gown, gloves, etc. Top that off with occasional high levels of stress and stinky pits can happen. I used to have to keep deodorant in my bag to reapply. This the ONLY deodorant that goes all day long! I love that the green scent is so light it's barely detectable. The blue scent, however, is strong and unappealing. My biggest issue now is that the price has jumped to $20! It was $12 a few years ago, and I think it was $14 the last time I purchased (last year). I might just have to go back to using the old deodorant and reapplying because this is insanity.

I read the reviews before purchasing and was hesitant, but went ahead anyway. I am so glad I did. After years of using Native and never feeling satisfied with the product, this deodorant has answered my prayers. I am a very active girl. This deodorant, along with nightly use of the Pacifica underarm detox scrub, is the only thing that prevents any and all body odor without the use of aluminum. Things to note: - I had no issues with the packaging, and found it to be leak proof and convenient. - I found the beachy clean scent to be very nice, however it is mild and does not linger once the deodorant dries. - I do occasionally experience a slight temporary redness after applying, usually just after shaving my underarms. I think this is to be expected since it contains AHAs. - It does not stain or bleach my clothing, which is something I had issues with while using Native. - The tube last me about 8 months. Definitely one of my best purchases of 2025. I had to put all my friends and family on too. Highly, highly recommend this product.

To whom it may concern: I worked in cosmetic manufacturing for multiple natural, aluminum free deodorant brands and in all of my market research this is my favorite serum deodorant formula! In the process of developing an effective serum, AHA deodorant formula I examined almost every single option on the market and this is hands down my favorite. Efficacious, not sticky, no burning (alcohol %) and reasonable scent load (unlike Saltair). I appreciate this product!

I specifically bought this Kosaport deodorant because it was a clear roll-on with cleaner ingredients. Overall I like it; not messy at all and dries pretty quick. I'm a light sweater with low activity level; a few light swipes is all I need and I feel protected all day. Depending on your body chemistry you may need more or less. What I don't like about this deodorant though is the actual information on the tube is hard to read. Not great if you ever want to reconsult the ingredients; you would have to keep the outer box or take a photo of it. Second, there was a warning on the outer box about using sunscreen with it because of the AHA ingredient. I double checked and this warning is not currently in the product description, or on the tube itself. It doesn't affect my use but considering the branding this would be important for people to know who were planning on using this during outside sports like say, volleyball where your under arms would be exposed. Third, the "Beachy Clean" sent smells artificial even though there are no artificial fragrance ingredients. It's just not the light, salty, ocean air scent I was expecting. It smells more like that "Cool Water" cologne or something. Overall I think this is a fine deodorant for daily use, I just would pick a different scent next time. However if you are someone looking for a deodorant to use during outside activities you may want to consider something else.

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The scent of the blue option is not great. Very chemical and overpowering. I’ve tried the white one and it’s much better.

I had to return it as it was an opened package received. The fact that I was unable to use it disappointed me, even though I was eager to use and review it.