Reporting back. The 2nd type won, it is Saccharomyces Boulardii (the other was Lactobacillus acidophilus) . I don't take it continuously anymore, just when I eat something that would make me gasy (beer, bread, beens,etc.) It has cut down on the strength of the fragrance by 80% or more...Don't believe me, just try it!
"Probiotics, however, are believed to have the largest influence on a person's need to fart. Probiotics are thought to be an effective reducer in flatulence when they are used to restore the balance of intestinal flora that are naturally occurring. Probiotics such as live yogurt contain actic bacteria, Lactobacillus acidophilus. These probiotics are thought to make the intestines more acidic. This increased acidity is though to help the fermentation process. Probiotics are very different from prebiotics, which are suspected to cause an increase in the need to fart among people who suffer from lactose intolerance. The benefits of probiotics, however, are not limited to the treatment of a fart. Probiotics are also used to treat Lactose intolerance, prevent colon cancer, lower cholesterol, treating hypertension, reduce inflammation, aid in the absorption of minerals, improve the immune function of individuals, help to prevent infections from developing, treat irritable bowel syndrome and colitis, and help reduce the rate of urinary tract infections and bacterial vaginosis."
http://disease.disease.com/Signs/Flatulence/Flatulence-Treatment.html