KOKUSAN YAKUHIN KOGYO
Nature's gifts, shaped for everyday wellbeing.
Based in Akizawa, Gifu City, KOKUSAN YAKUHIN KOGYO Co., Ltd. was incorporated on August 12, 1946. The company manufactures pharmaceuticals and quasi-drugs, building on herbal (kampo) production know-how. It also develops herbal bath additives such as "IBUKISEN," offering different profiles you can choose by scent and style. In addition, its laboratory work supports preventive health settings, including school-related testing programs.
Why We Love It
If you are new to the brand, start with single-sachet bath items like IBUKISEN or YAKUJU and compare the scent and feel. Next, try YUTORI (a blend of multiple herbs) for a different mood. Gift sets are widely available, so choosing by sachet count and occasion is an easy way to find your "just right" option.
PROFILE About the Company / Workshop
KOKUSAN YAKUHIN KOGYO Co., Ltd. is based in Akizawa, Gifu City. The company was incorporated on August 12, 1946, and has continued to work across pharmaceuticals and clinical testing with a focus on health and safety in everyday life.
Its pharmaceutical work centers on kampo-oriented manufacturing techniques. Herbal ingredients are extracted, processed into powders or granules, and then moved through tableting/coating and packaging. The company manufactures and ships 28 items in total: 17 pharmaceuticals and 11 quasi-drugs.
Bath additives are another key face of the brand. IBUKISEN is presented as a formula built on local herbs with influences from Chinese herbal bathing practices. YAKUJU highlights a refined fragrance. YUTORI is positioned as a blend of 10 herbs, while SHOYAKUMANSAI features 13 herbs and is described as 100% plant-derived.
In health food, the KIKUIMO Premium series uses Gifu-grown Jerusalem artichoke and comes in tablet, jelly, and powder forms (OEM only). On the laboratory side, the company conducts programs such as school-related testing, adding a preventive layer to its work in the region.
Founded in 1946, rooted in Gifu
Incorporated in 1946, the company operates from Gifu City with two pillars: pharmaceutical manufacturing and laboratory testing. A respect for natural ingredients runs through its work.
Kampo-oriented processes, step by step
Selected crude drugs are extracted into herbal extracts, then processed into powders or granules. Tableting/coating and packaging follow under strict quality control, aligned with GMP requirements.
Herbal bath additives with distinct personalities
The bath line includes IBUKISEN, YAKUJU, YUTORI, and SHOYAKUMANSAI. Each sits in a different place on the spectrum, from fragrance-focused to multi-herb blends.
Laboratory testing for preventive settings
As a registered testing facility, the company handles areas such as PCR testing, microbiota-related testing, and food hygiene testing — supporting real-world prevention needs.
PRODUCTS Featured Products & Services
Contains promotional content
IBUKISEN (50g) single sachet
A single-sachet option that makes it easy to try the scent and feel before committing to a larger pack.
Herbal bath (5-sachet pack)
A convenient 5-sachet set. Useful when you want small batches for weekday/weekend rotation.
3-type gift set (Hida / Ibukisen / Yakuju)
A gift-style assortment featuring three different bath items. Great for comparing profiles side by side.
3-sachet assortment set (G10)
A compact assortment: Kusayu 30g, Hida 50g, and Ibukisen 50g, one each — an easy trial set.
Hida bath (5-sachet) x4 bundle
A bundle pack designed for stocking up. Handy if you use herbal baths frequently.
Assorted herbal bath set (20 sachets)
A 20-sachet assortment for daily rotation — pick your favorite mood for the day.