This is a bath additive for the hot spring at Nanasawa-so, located in the mountains of Atsugi, Kanagawa Prefecture. It's one of the best "bijin-no-yu" (beauty hot springs) in the Kanto region, comparable to Beppu, Kusatsu, Arima, Gero, and Sukayu. I've tried various bath additives, and this is currently my number one. 【Nanasawa Onsen Nanasawa-so】 The source of Nanasawa-so's hot spring is the only authentic natural hot spring in eastern Tanzawa, which took three years to excavate. The water boasts the highest concentration in the prefecture and is strongly alkaline, popular with female customers as a "bijin-no-yu." The open-air baths, for both men and women, are spacious. There are three different baths, so please choose your favorite. The indoor baths are connected to their own open-air baths, so feel free to move between them. Day trips are also available, so please feel free to visit. We look forward to your visit. "Here's what we recommend♪" The thick, viscous water is popular with female customers as a "hada-no-yu" (skin-beautifying hot spring). Also sold at Nanasawa-so. This is a new purchase, and the package design has been updated. Other hot spring products are also available. (Unfortunately, bath additives are generally not discounted) Shipping costs are reduced for multiple purchases. Combined shipping discount. Search key is "onsen sei3" Adding one more item: -180 yen Adding two more items: -360 yen etc. (discount) There is also an end-of-month discount. Also, a bonus is included for those who want it. Refer to the contents of "onsen no moto recommended 3-piece set." For those who write a review within two weeks of purchase, we will give a 50 yen/type discount on your next order (requires comment: review discount). * Seller: Nanasawa Onsen Nanasawa-so * Contents: 250g [approx. 10 uses] Cosmetic for bathing * Color: Colorless * Scent: Fragrance-free * Ingredients: Sodium Carbonate, Sodium Bicarbonate, Sodium Sulfate, Sodium Chloride, Calcium Carbonate, Sodium Metasilicate * MADE IN JAPAN How to use: Add one spoonful of the bath additive to a 200-liter bathtub. 63-80 Precautions for use: This product is an original blend based on hot spring analysis values and is not a source spring. This product is intended to "enjoy the atmosphere."