Immunitone Plus™ is an herbal formula designed to support a healthy immune system.* It contains herbs that help support normal natural killer cell activity and the balance of cytokines, which are the regulatory proteins released by immune cells as part of a normal immune response.* The standardized herbs in this formula contain optimal and consistent amounts of the most active and supportive ingredients.* Due to its ability to stimulate the body’s immune response, Immunitone Plus™ is suitable for healthy adults during times of immune challenge, such as the cold months, but not for those with overactive immune systems.