Pre & Pro Biotic Elixir restores the natural beneficial bacteria that the human body needs for optimum digestive and immune function. It includes a selection of herbal extracts added to the fermentation for a daily probiotic that improves energy and overall health. Placing a huge emphasis on nature, and staying true to this principle, this product contains 12 strains. Unlike pure-culture probiotics, Pre & ProBiotic Elixir contains many different live strains. As a result, users end up with a comprehensive probiotic that survives stomach acid 16x better than other brands tested. Most probiotics available today are grown as pure cultures and then freeze-dried to be kept alive. We use a natural process where the range of species interact as a part of their normal lifecycle, with normal competition, so when they are introduced to the gut environment, their ability to survive is excellent. Derma clinical Pre & Probiotics are not freeze-dried meaning they are alive and in their natural, raw state.