ELPS TO BOOST AND SUPPORT THE IMMUNE SYSTEM.Mr. Tumee™ Echinacea Plus Vitamin C and Zinc is designed to boost and stimulate the immune system. Echinacea, also known as the coneflower, helps to strengthen the immune system through its antimicrobial and anti-inflammatory properties. Vitamin C and Zinc contain many antioxidants and together, help to stimulate the body’s immune system.