Nutribiotic® Tablets are used internally as a supportive treatment for a wide variety of ailments, including Candida infections, sore throats, intestinal upset, etc. The product is easy to swallow and eliminates the problem of bitter or unpleasant taste. Extensive testing done at independent laboratories and universities around the world has proven the concentrate to be safe for human consumption. It is effective against pathogens because it belongs to a family of compounds known as quaternary compounds. This family is best known for benzylkonium chloride and benzylthonium chloride as well as the infamous Quaternium group, a very toxic antimicrobial preservative used in the cosmetics industry. While Grapefruit Extract is molecularly similar to these compounds, there are some profound differences in structure and function. Studies done to date indicate that there is little danger in either short-term or long-term internal use. These are very handy and small and easy to take. Each tablet = about 12 drops of liquid. Ingredients: GSE - 125 mg., rice protein, veg. cellulose, guar gum. No soy, milk, eggs, yeast, corn, wheat, sweeteners or preservatives. VEGETARIAN APPROVED. GSE - 100 Tablets