Mole Scram biodegradable mole repellent is a proprietary blend of natural and organic ingredients, that provicdes triple-action protection against moles. Causes the mole's food to taste bad and irritates the digestive system. Causes tunnels and surrounding soil to have an unpleasant odor. Also reduces insect activity which reduces the mole's food availability. Environmentally safe and nontoxic; safe for animals, people, and plants. It is also an excellent preventive measure when used in the spring and fall. Active ingredient: Castor Oil. Mole Scram will safely and naturally stop mole infestation if used as directed.