Echinacea purpurea root and Allium sativum extract combined with other targeted herbs and nutrients for immune support.*EHB stands for echinacosides, hydrastine, and berberine. It is a physician-formulated supplement that contains a proprietary blend of three types of Echinacea, standardized garlic, licorice, citrus bioflavonoids, and other immune enhancing botanicals, plus vitamins and minerals to support a healthy immune system.* Helps strengthen immune defenses* Contains whole plant parts and extracts for maximum support Long history of use in clinical practice