Explanations by Spring Quality

This page introduces General Indications and Contraindications, also Indications and Contraindications for each Spring Quality.

②Chloride springs 塩化物泉

“Hot springs for warmth” with salted pack
“Hot springs for cuts” with bactericidal effect

Hot springs with 1,000 mg or more of dissolved substances (excluding gaseous substances) in 1 kg of hot spring water, and with chloride (chlorine) ion (Cl-) as the main anionic component.
Depending on the main component of the cation, it is classified as a “Sodium-Chloride spring”, “Calcium-Chloride spring”, “Magnesium-Chloride spring”, and so on. The main component is salt, so the water tastes salty when drunk, and bitter when the salinity is high, or the magnesium concentration is high.
When you soak in a hot spring containing salt, the salt covers your body like a pack. This pack blocks the sweat glands (organs that secrete sweat), so the body temperature drops slowly after bathing, and the feeling of warmth continues for a long time.
For this reason, “Chloride spring” is also called “Hot springs for warmth”. Sensitivity to cold can be recognized as an indication for other springs also, but the “Chloride spring” is particularly effective.
At the same time, the warming feeling that continues for a long time will help improve Peripheral circulatory disturbance. This salt pack also reduces skin dryness after the bath due to the coating effect of hot spring components and their moisturizing effect.
The effect of sustained warmth helps to balance autonomic nervous system and brings about a sense of mental stability. Also, increased body temperature reduces the secretion of stress hormones, which may contribute to mood improvement and have a positive effect on Depression.
Also, after bathing in hot springs that remove dead skin cells, such as (Weak) Alkaline simple hot springs, Hydrogen carbonate springs, Sulfate springs, and Sulfur springs, which are so-called “Hot springs for beautiful skin”, then bathing in “Chloride spring” is also called “Hot springs for finishing touch” due to its salt coating & moisturizing effects. It is also called “Hot springs for cuts” because of the bactericidal effect of its salt content, which is effective against cuts and burns.
When drinking, the sodium chloride effect stimulates the gastric mucosa and promotes the secretion of gastric acid, while at the same time protecting the gastric mucosa. It also stimulates the intestinal wall, so that peristalsis of the intestines becomes active, and stools pass smoothly through the intestines. This is why Atrophic gastritis and Constipation are among the indications for drinking.
Incidentally, “Sodium-Chloride strong saline springs” refers to hot spring water where the main component of cations in 1 kg of water is sodium ions, with a sodium ion concentration of 5,500 mg/kg or more and a chloride ion concentration of 8,500 mg/kg or more. Or this applies when both sodium and chloride ions are 240 mval/kg or more.

Indications by Spring Quality	For bathing	Cuts, Peripheral circulatory disturbance, Sensitivity to cold, Depression, Dry skin　※Same as Sulfate springs
Indications by Spring Quality	For drinking	Atrophic gastritis, Constipation
Contraindications by Spring Quality	For bathing	None
Contraindications by Spring Quality	For drinking	None

■Old spring name・・・The name changes depending on the content of sodium chloride (NaCl) (salt) → Weak salt spring (less than 5,000 mg/kg) / Salt spring (5,000 mg/kg or more but less than 15,000 mg/kg) / Strong salt spring (15,000 mg/kg or more)
■Color of water・・・Clear and colorless
■Taste & Smell・・・Salty and odorless
■Water texture・・・More salty, more sticky feeling
■Major hot spring inns・・・"Nukumori-no-yado FURUKAWA" Jozankei Onsen, Hokkaido／"Arimakan" Kaminoyama Onsen, Yamagata Prefecture／"Hakone Kamon" Hakone Yumoto Onsen, Kanagawa Prefecture／"Hakone Ginyu" Hakone Miyanoshita Onsen, Kanagawa Prefecture／"Yugawara Gensen-no-oyado CHIYODASOU" Yugawara Onsen, Kanagawa Prefecture／Echigo Nagano Onsen, Niigata Prefecture／"Ranpu-no-Yado" Yoshigaura Onsen, Ishikawa Prefecture／"Taketoritei Maruyama" Arima Onsen, Hyogo Prefecture／"Yumeguri-no-yado Kinsui" Kinosaki Onsen, Hyogo Prefecture／"Yamaai-no-yado Kiyasuya" Sujiyu Onsen, Oiita Prefecture／"Fumoto Ryokan" Kurokawa Onsen, Kumamoto Prefecture

List of inns with this spring quality

General Indications ※Indications for all spring quality	For bathing	Chronic pain or stiffness of muscles or joints (chronic phase of rheumatoid arthritis, osteoarthritis, lower back pain, neuralgia, frozen shoulder, bruises, sprains, etc.), muscle stiffness by motor paralysis, sensitivity to cold, peripheral circulatory disturbance, gastrointestinal hypofunction (slow digestion, intestinal gas formation, etc.), mild hypertension, impaired glucose tolerance (diabetes), mild hypercholesterolemia, mild asthma or emphysema, pains of hemorrhoidals, autonomic instability, various symptoms from stress (sleep disorders, depression, etc.), restorative phase from illness, recovery from fatigue, health promotions
General Indications ※Indications for all spring quality	For drinking	※There is no general indications for drinking.
General Contraindications ※Contraindications for all spring quality	For bathing	Active stage of diseases (especially when fever is accompanied), active tuberculosis, advanced malignant tumor, or the case of significant debility involving severe anemia, severe cardiac or lung diseases involving suffocation feelings with a little movement, severe kidney disease involving edema, gastrointestinal bleeding, when there is visible bleeding, acute exacerbation stage of chronic diseases, etc.
	For drinking	※There is no general contraindications for drinking.