Dr. Harold Katz, founder of the California Breath Clinics, is the leading expert in the fields of bad breath, sour/bitter taste and dry mouth.

Over the last 10 years, his oxygenating compounds have been used by over one million people around the world to eliminate their bad breath problems.

Dr. Katz is a 1975 graduate of the UCLA School of Dentistry and holds a degree in Bacteriology, also from UCLA (1971). After establishing a private dental practice in Beverly Hills, California, Dr. Katz began his own research into the Truth About Bad Breath in 1994, after he was unable to help his own 13-year old daughter with her breath problem. Highly advertised commercial mouthwashes were making her breath more offensive, and despite immaculate oral hygiene (brushing 5-6 times daily with the most popular toothpastes and flossing several times a day), the problem persisted. His background in Bacteriology assisted him in realizing that bad breath is caused by a group of Anaerobic Sulfur-Producing Bacteria which breed beneath the tongue's surface and in the throat. Under certain conditions, these bacteria initiate the production of the Volatile Sulfur Compounds (VSC's) found in bad breath and taste disorders. Bad Breath does not come from the digestive system, as some highly advertised products falsely claim.

Armed with this knowledge, in 1994 Dr. Katz began to experiment with various compounds that would attack the Anaerobic Sulfur-Producing Bacteria within the mouth. The resulting products -- refined over and over throughout the past 10 years -- are nothing short of astonishing. Clinical tests of Dr. Katz's patients have repeatedly resulted in a complete elimination of over 98% of the VSC's within their mouths.

Since 1994, no one has helped more people fight Bad Breath than Dr. Katz -- approximately 13,000 men and women have been successfully treated through his California Breath Clinics in the US and internationally. Over 1,000,000 people in 68 different countries have used his TheraBreath System formulas to eliminate halitosis (bad breath) and regain their lost confidence.