This product is a synergistic blend of Samento (Uncaria tomentosa), Stevia (Stevia rebaudiana) and Banderol (Otoba parvifolia). It is designed to assist with comprehensive microbial support.* Our liquid extracts are made at our U.S. manufacturing facility using a specialized proprietary extraction process that optimizes the constituents of the herb in its original, unprocessed state to obtain broad-spectrum concentration. Because our extracts are made in our own facility, we control all aspects of quality, including stringent ID testing, microbial testing, and heavy metal testing. NutraMedix rigorously follows current good manufacturing practices (cGMP), as do our suppliers.