Water-soluble calcium carbonate ore
(calcium content:95.75%)

Produced in the Futamata hot spring Hokkaido, Japan. Research papers on "Yunohana" (mineral deposits) were presented at the very first medical convention by professors at Tokyo University and Hokkaido University (absorption and decomposition of toxic substances).

Specially manufactured tourmaline ceramics

Also known as "Electric Stone". When exposed to water it induces electrolysis and generates negative ions. It also ionises water molecules by decreasing their size (negative ion effect).

Coral fossil (weathered coral)

Produced in Kuromatsunai, Hokkaido. It is mined from a 20 million-year-old seabed layer which has been uplifted to ground level. The coral adds its valuable mineral contents to the tap water, also making it softer.

Binchotan-charcoal

Having the same absorbability as activated carbon, it absorbs heavy metals and impurities in tap water, making the water milder by activation (antiseptic and far-infrared effects)

Maifanshi-stone

It's mineral contents activates the tap water to decompose impurities for superior sterilisation effects.

Dechlorine ceramics

It quickly decomposes and removes chlorine and other unpleasant odours found in tap water.

Hiba-tree from Aomori, Japan:
The box frame itself, is made entirely of wood from the Hiba tree.

Forest-like relaxation with the scent of Hiba-tree. Antibacterial and deodorant effects.