HERBAL INTERNAL POWDER (Yeast Free): Formulated by Dr. Bob Goldstein An organic, herbal blend of Alfalfa Powder, Garlic Powder, Blue-Green Algae (Spirulina), Kelp Powder, Papaya Leaf, Nettles Leaf, Hawthorne Berry Powder. These ingredients will help cleanse the blood, bitter the blood, support circulation, help deter fleas and ticks, mosquitoes and black flies.