Bad breath can originate from a wide variety of different places in your body. That's why most of these companies out there that promote their products with 'instant' cures are full of it. Here's why:
Dr Murat Aydin is a halitosis expert and has come up with a great classification system that define all types of bad breath. Here's a quick overview of this system:
Type 1 halitosis: Bad breath that originates from the mouth such as cavities, gum disease, bacterial imbalance on the tongue, impacted wisdom teeh etc.
Type 2 halitosis: Bad breath that originates from AROUND the oral cavity. Post nasal drip, tonsil stones, bacterial imbalance in the back of throat, retro-nasal mucosa etc.
Type3 halitosis: Bad breath that originates from the digestive tract. GERD, chronic gastritis, hiatal hernia, stomach and duodenal ulcers, lazy colon syndrome, etc.
Type 4 halitosis: Blood borne halitosis. Liver and kidney diseases, pulmonary infections, blood disorders, TMAU, etc
Type 5 halitosis: Delusional bad breath. A psychological state also known as halitophobia which greatly exagerates perceptions of breath odors.
More details on this classification method at : www.chronicbadbreathfix.com
The reason bad breath products widely advertised on the net don't work is because:
1/ They don't take into consideration the adaptive capacities of bad breath causing bacteria.
2/ They mostly address a single type of halitosis (usually type 1)
To cure bad breath for good, the sufferer must first identify under which category he/she falls under. For example, it is useless to take a treatment for a type 1 halitosis for someone with SIBO (Small Intestine Bacterial Overgrowth).