Frontier Biotics II is a non-dairy probiotic formulation produced from an all-natural source of beneficial microorganisms. It is designed to support digestive tract health and provide ingredients that support proper immune function and microbial balance in adults.* Frontier Biotic II contains some species of the numerous microorganisms that naturally populate the human gastrointestinal tract. Probiotic bacteria, or “good bacteria,” promote favorable balance of intestinal microflora. The human intestines harbor between 300 and 1000 different species of flora. Some people estimate that there are one hundred billion or one trillion bacteria per gram of colonic content in the large intestine. This mind-boggling amount is ten times as many cells as there are in the human body!