Article | Category: Glossary Terms

A three part treatment lasting about an hour. First you are served hot enzyme tea, then you submerge in a large wooden tub filled with fragrant blends of cedar fibers and plant enzymes imported from Japan. The enzyme bath stimulates circulation and metabolism.




Other Names:

Osmosis Enzyme Bath, Koso Boro Enzyme Bath, Willow Enzyme Bath


Description of Offering

A detox treatment that originated in Japan brought to the U.S., usually beginning with a cup of tea followed by bathing in either wood shavings or rice bran causing a heating sensation releasing toxins and improving circulation.


This offering is a modern creation (originated after 1800).


Creator of Offering (Nationality)

Michael Stusser (American) created the U.S. experience.


Comments about offering’s origin/creator

After traveling to japan to venture into zen meditation and Japanese gardening practices. He also joined a Buddhist monastery that taught him about the enzyme baths. Returning to states in 1984 to bring back his learning and start a business that quickly gained attention because of his unique practices.  Opened the Osmosis Spa in California.


Brief History of the Offering

Originated in Hokkaido, Japan in the 1940s but gained international noticing during the Winter Olympic Games in 1972 in the Sapporo athlete village.


Fun Fact

Stusser started the service at Osmosis Spa using recycled lumber from a chicken coop.




Primary Benefit Received

Increase Circulation in Body


Other Benefits

Increase Flexibility, Stress Reduction, Relaxation


Research Publication




Primary Findings of Research

No research on enzyme bath services could be found.




Typical Length of Offering

15 - 30 minutes


The offering is most often provided one guest at a time.


Offering is primarily suited for:

Day Spa (wellness focus), Destination Spa.


How many treatment providers are needed to produce the offering?



Common License/Certification or Training necessary to provide the offering:

Spa Attendant


Comments about Offering Protocol

Service generally begins with a cup of tea.  Customer immerses in the enzyme bath (typically wearing swimsuit) for 20 minutes.  Being in nature is encouraged after the bath. 


Type of space/facility most often used for the offering:

Private Dry Treatment Room


How many towels are used?



Does the guest generally use a robe and/or a wrap for the offering?

Yes, robe only.


How many sheets are used?



Does the offering require the use of products (i.e. lotions, lacquers, scrubs, cleansers, etc.)?



How many different products are used?

2 - 5


Approximate product cost per treatment:

$5 USD


Products used:

Rice bran, wood shavings, fruit and vegetable enzymes.


Does the offering require the use of disposable supplies (i.e. cotton squares, balls and swabs, lancets, etc.)?



How many different disposable supplies are used?



Describe/list the disposable supplies used?

Enzyme teas or enzyme energy drinks.


Equipment and supplies needed to provide the offering:

Wooden Tub.


Beyond labor, linens, disposable supplies and products, please list any other direct costs associated with the offering?



Including only the following items (products, disposable items, linen laundry, and other direct costs---not labor), what is the typical cost of the offering?

$2 - $10 USD


Comments about offering costs.

Bathing products and linen laundering.


Typical single session price of the offering.

$50 - $200 USD




Publication used to prepare this submission.

Willow Spa


Osmosis Day Spa


Koso Boro Enzyme Bath 


Japanese Enzyme Bath Metabolic Rejuvenation

Michael Stusser


Author Information

Omar Longoria

Florida Gulf Coast University


Author Biography

Omar is a student at Florida Gulf Coast University majoring in Resort and Hospitality Management.


Editor Information:

Mary Wisnom

Professor, School of Resort & Hospitality Management, Florida Gulf Coast University, USA