Reddit reviews Deodorant Stones of America: Thai Crystal Deodorant, 4.25 oz (Pack of 2), Packaging May Vary

Try the hippie-style underarm crystal thing. It doesn't smell like anything and doesn't keep you from sweating, but it does prevent bacteria from growing and thus keeps you from smelling. It's the underarm pinnacle IMO.

Edit: as someone else posted, here's an example.

Edit 2: The crystals are potassium alum aka potassium aluminum sulfate. Traditional antiperspirants are aluminum chloride. The distinction is as follows: The difference between potassium alum and aluminum chlorohydrate is that potassium alum is a much larger molecule, not thought to be absorbable through human skin. The difference between these two that I experienced is night & day - traditional antiperspirants have me reeking as soon as I miss a single day. In contrast the potassium alum crystal is very forgiving and I never smell bad, even if I miss a day. Everyone's own experience is the thing that matters here, and I'm just putting this out there since it gets so little press.

Probably:

https://www.amazon.com/Deodorant-Stones-America-Thai-Crystal/dp/B001E0YN1W?th=1

The twist: it is actually an antiperspirant

Have you tried salt sticks? I can't attest to their efficacy personally, but my friend uses them, is prone to sweating, and does not smell. I think you're supposed to use them for a few weeks before they reach their full "potential".

I don't like scented deodorants. And I am also weary of aluminum in my pores. I use Salt Crystal stones. https://www.amazon.com/dp/B001E0YN1W

this stuff alleges not to be, and it works great.

There's this one I started using that basically is a crystal: Thai deodorant stone from Amazon:

Deodorant Stones of America: Thai Crystal Deodorant, 4.25 oz (Pack of 2) https://www.amazon.com/dp/B001E0YN1W/ref=cm_sw_r_cp_apa_W8zyzb9VEQ82M

I don't want all that fake flowery or fruity scent in my pits anymore. Mind you, it isn't an anti-perspirant as I'm also not trying to prevent the body's natural waste elimination processes. Hope you find something you like and works for you.