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One stone, generations of use

Thailand

One stone, generations of use

A single mineral salt crystal used as a deodorant across Southeast Asia for generations.

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The crystal that lasts

Across Southeast Asia, a smooth crystal of mineral salt has been used for generations as a simple deodorant. It is natural potassium alum — a mineral salt that, dampened and rubbed on the skin, helps keep you fresh through the day. A single crystal can last a year or more, needs no packaging once you own it, and carries nothing but the mineral itself. Sann cuts and polishes the same crystal, so the old, zero-waste way is simple to keep.

Where it comes from

Thailand

A single mineral salt crystal that has been used as a deodorant across Southeast Asia for generations.

What
Alum crystal deodorant
Made for
Zero-waste personal care
Region
Asia

How it's made

A natural potassium alum crystal is cut to a comfortable size and polished smooth. It needs nothing added — the mineral salt is the whole product. Used with a little water, it leaves a clean, fresh feeling that lasts.

How to use it

Dampen the crystal and rub it gently over clean underarms, then let it dry. Rinse the crystal and let it air. A single stone serves for a very long time — just keep it dry between uses.

Good to know

How do I care for it?

Rinse it after use and let it air dry, and keep it in its dish or case between uses. Kept dry, a single crystal stays fresh and effective for a very long time.

Is it zero-waste?

Yes — once you have the crystal there is nothing to throw away. It comes in minimal packaging, is used with a little water, and lasts so long it rarely needs replacing.

Will it work for everyone?

It suits most people and is gentle, being just a mineral salt with no fragrance. As with any personal-care product, try it on a small area first and see how it feels for you.

How does it work?

Dampened and rubbed on clean skin, the mineral salt leaves a fine, invisible layer that helps keep you fresh through the day. There is nothing else in it — just the crystal.

How long does one last?

A single crystal lasts a long time — a year or more for most people. Because it is a solid mineral, it does not run out quickly and needs no refills or packaging.

What is alum?

It is a natural mineral salt, potassium alum, that forms in clear crystals. Across Southeast Asia it has been used for generations as a simple, natural deodorant.

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