
How persimmon tannin actually neutralizes body odor
The molecule behind body odor is called nonenal. Tannin binds to it and takes it out of play. Here's what that looks like at the microscopic level.
Longer thoughts on ingredients, ritual, sourcing, and the quiet business of making one bar of soap the right way. New posts every few weeks.

The molecule behind body odor is called nonenal. Tannin binds to it and takes it out of play. Here's what that looks like at the microscopic level.

A routine isn't a checklist. It's a shape you can return to on the days you don't have the energy to think.

A visit to the Gifu orchard that grows every leaf that eventually ends up in a Kakinoha bar.

It's a legal shortcut, not an ingredient. If you can smell something in our bar, it came from a plant we listed.

Fermented persimmon has been used in Japan since the Heian era. What happened, and what we can learn from it.

We could triple output tomorrow. We won't. Here's the reasoning, laid out honestly.
One thoughtful essay every few weeks. No sales, no discount countdowns.