New Roots Grapefruit Seed Extract with Wormwood - Contains a natural extract of grapefruit, lemon and tangerine seeds. Successfully used in humans and animals alike to eliminate many types of internal and external infections caused by many types of parasites (single- and multicelled), viruses, bacteria, and fungus. It naturally detoxifies, enhances, and supports the immune system. With wormwood extract which is traditionally used in herbal medicine to expel intestinal worms.