kannagara
kannagara Miyayu Bath Salt, 25g x 10 packs
kannagara Miyayu Bath Salt, 25g x 10 packs
Rated 7.0 out of 7.0 by Japan’s largest beauty community
You'll notice the difference when you wake up: "Miyayu"
✓ 100% AUTHENTIC, SHIPS FROM JAPAN
✓ DUTIES & TAXES INCLUDED FOR US ORDERS
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What it is
Despite suffering from chills and swelling, you don't have time to take a long bath. Stress and lack of sleep can wear you down both mentally and physically. The number of modern people suffering from this "pre-illness" condition is increasing, regardless of age or gender. "I give up on beauty and health because I don't have time for myself." The hydrogen bath additive "Biyayu" was developed to address these women's concerns. In just 10 minutes, it warms you from the inside out, just like a sauna. → Even a short soak in lukewarm water stimulates circulation, leaving you feeling warm and cozy for a long time after bathing. The power of hydrogen resets the body's rust. → Hydrogen improves fatigue and dullness, and addresses signs of aging. Silicon provides firmness and moisture to skin and hair. → Hair becomes shiny and manageable, and skin becomes smooth and supple. Removes chlorine from your bath, transforming it into a "beauty bath." → Removing chlorine reduces irritation to hair and skin. Safe for sensitive skin, postpartum, and baby baths. Be soothed by the scent and enjoy a deep night's sleep → The citrus and woody scents relax the brain and help you fall asleep.
Ingredients
How to use
Add one scoop (approximately 25g) of the included spoon to 150-200L of hot water at approximately 40°C, stir, and soak in the bath for 10-15 minutes. It can also be used to wash your face and hair. The hydrogen concentration will last for approximately 3 hours even after the bubbles have disappeared. If using a circulating bathtub, the hydrogen concentration will decrease, so please stop the circulation before use. *The remaining water can be used for laundry, but do not use it for soaking or rinsing.
We ship internationally from Japan!
Frequently Asked Questions
Is this authentic?
Yes. We only buy from official retailers and directly from the brands here in Japan. Never resellers, never grey market stock.
We are beauty lovers too, so we know the worry, especially with something you are putting on your face. Authenticity is 100% guaranteed by us.
What are your shipping rates?
On orders under US$75, shipping is a flat US$20 to the United States and US$10 to all other countries.
Orders of US$75 or more ship free, applied automatically at checkout. Your exact shipping cost is shown before you pay.
How long does delivery take?
These estimates are for International Airmail (Tracked) and include 3 to 5 business days of processing in Japan.
- United States: 12 to 15 business days
- Canada, United Kingdom, France, Germany: 9 to 12 business days
- Australia, New Zealand, Denmark, Finland, India, Indonesia, Italy, Netherlands, Spain, Sweden, Switzerland: 10 to 13 business days
- China, Hong Kong, Malaysia, Singapore, South Korea, Taiwan, Thailand, Vietnam: 8 to 10 business days
- Rest of the world: 11 to 18 business days
Actual delivery can be affected by customs clearance, seasonal congestion, or carrier delays in the destination country, all of which are outside our control.
Do you offer express shipping?
Yes. As of 22 July 2026, we offer International Express Mail through Japan Post. The cost is based on order weight and is calculated automatically at checkout.
Will I pay customs or import fees?
US orders: No. As of July 1, 2026, all US orders ship DDP (duties delivered prepaid), meaning we prepay all import duties on our end. Nothing is due at your door.
Orders outside the US: Possibly. Duties and import taxes are set by your local customs authority and are not collected at checkout, so any charges on delivery are your responsibility.
We're working on rolling out prepaid duties for more countries soon.