Citrigen provides a high, pure concentration of grapefruit seed extract along with synergistic herbs known for their ability to combat infectious micro-organisms. Grapefruit seed extract possesses powerful and effective properties that limit the reproduction of germs, parasites and fungi. Research shows that environmental pollutants, lack of exercise and inadequate nutrition can lead to increased allergies, and parasitic and bacterial infections which, in turn, release toxins into cells, damaging tissue and leading to chronic degenerative disease.