Herbal Biotic is a powerful combination of immune enhancing herbs, bioflavonoids and vitamins. The vitamins and mineral in the formula (Vitamin A, Vitamin C, and Zinc) are well-known for their roles in normal immune function. The herbs and bioflavonoids provide high levels of antioxidant activity and support the body’s natural defenses. This synergistic formula promotes upper respiratory and sinus health. Vital Nutrients mission is to manufacture superior quality nutraceuticals that exceed both industry and government standards and provide clinically effective results. They provide over 200 science-based and clinically effective products. They have a comprehensive quality assurance program to ensure that purity and potency is consistently met on every product that they manufacture. Vital Nutrients uses independent U.S. ethical laboratories to test all raw materials and finished products. Each raw material is tested, regardless of origin, for purity and potency. All finished products are tested through a real time stability protocol for expiration date validation. They are an FDA Inspected facility that exceeds FDA cGMPs, and a member of the NPA.