Experience Japanese Summer at Home: Onsen Box June Edition Featuring Yokudama Hanabi “Hana”
This June, Onsen Box brings the magic of a Japanese summer night to your bathtub with a truly unique bath item: Yokudama Hanabi “Hana”, a luxurious bath bomb wrapped in real yukata fabric. Combining Japanese tradition with modern self-care, this item offers a beautifully fragrant and deeply relaxing bathing experience — perfect for anyone seeking an authentic taste of Japanese wellness at home.
What is “Yokudama Hanabi”?
The word Yokudama (浴玉) means “bath ball,” and this one is special. Each Yokudama is wrapped in real yukata cloth — a traditional Japanese cotton kimono often worn during summer festivals. The tradition of yukata dates back to the Heian period (794–1185), when nobles wore yu-katabira as bathrobes.
The Hanabi (“fireworks”) edition features a modern printed yukata fabric in vibrant, colorful designs. Just like fireworks blooming briefly in the night sky, this bath bomb creates a fleeting, beautiful moment of relaxation in your bath.

Scent & Benefits: A Gentle Hug of Japanese Angelica Root (Tōki)
This bath bomb was designed with women in mind, featuring a light, soothing scent of Japanese angelica root (tōki) — an herb often used in traditional Japanese and Chinese medicine to warm the body and promote relaxation. As it melts into your bath, Yokudama Hanabi turns your water into a silky, slightly viscous soak that feels just like a Japanese hot spring.
Carefully Selected Natural Ingredients
To recreate the feel of an authentic Japanese onsen, Yokudama Hanabi is crafted with a blend of natural minerals and botanical extracts known for their healing and skin-loving properties:
- Himalayan rock salt – Rich in minerals, helps detox and warm the body
- Beet sugar – Gentle on the skin and provides mild hydration
- Metasilicic acid – A natural moisturizing component found in real hot springs
- Japanese angelica root (Tōki) – Supports circulation and relaxation
- Kagome kelp & Ma-kombu – Natural seaweed extracts that reduce chlorine and give bathwater its signature soft texture

This unique blend transforms regular bathwater into a silky, mineral-rich soak, offering a soothing, spa-like atmosphere — just like bathing in a real Japanese hot spring.
How to Use & Enjoy Yokudama Hanabi
1. Float it in your bath
Simply place the fabric-wrapped bath ball in your tub filled with warm water. Watch it gently fizz and dissolve.

2. Gently squeeze to speed up
If you’d like the fragrance and ingredients to release faster, you can softly squeeze the ball in the water.
