Yunohana Powder: Natural Bath Salts with Onsen Components

Since many Japanese people soak in a warm bath almost every day to relieve stress and fatigue, in Japan, there are a wide variety of bath salts with various health benefits.

As I wrote about it before, Japanese bath salts are available in 3 types, but among them, have you ever heard of natural bath salts with onsen (hot spring) components called “Yunohana (湯の花)”?

Yunohana (湯の花)


Yunohana, literally meaning Hot Spring Flower, is actually a white mud-like mineral residue that is left by hot spring water. 

As you can see in the photo above, the whitish deposit accumulated on the bottom of the spring is Yunohana.

As in its name “Hana (花)” means flower in Japanese, since old days, the whitish stuff is likened to flowers in the onsen.

Yubatake (湯畑)

Kusatsu Onsen Yubatake

In Japanese onsen resorts, the mineral deposit, Yunohana is intendedly accumulated in the wooden tubs called “Yubatake (湯畑)”, then scooped up, and sold as natural bath salts.

Yunohana Powder

The Yunohana powder contains lots of Onsen components and is used for bathing at home. Since it is said that there are approximately 3000 onsen springs in Japan, various varieties of powdered Yunohana exist. 

Yunohana Natural Bath Salts
Yunohana Powder

Among them, this is an especially popular Yunohana powder, which is, in fact, being sold in onsen facilities around the country.

How to Use

As for how to use the Yunohana powder, you just add 1 tablespoon (15 to 20 grams) of the natural bath salts to a bathtub of warm water (approximately 180 to 200 liters) and dissolve well.

Once the powder is dissolved in the water, the watercolor turns milky white. The cloudy water with onsen components is a bit slimy, but that makes you feel as if you were in a real onsen bath.


Anyone from adults to children can enjoy the onsen-like bath. While you soak in the tub for a few minutes, you will get warm from the inside of your body. Besides, the water with onsen components has the effect of beautifying the skin.


Hi, I'm Tomo, a Japanese blogger living in Niigata Prefecture, Japan. For the purpose of enriching your life, I would like to introduce things about Japan on this blog, especially unique Japanese products, cooking recipes, cultures, and facts and trivia.

2 Responses

  1. KM says:

    Hi i would like to try the salt bath. May I know where can I buy this. I saw it on ebay and amazon. Not sure if the price is reasonable. Btw I m from Malaysia.

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