It provides tissue from the thymus gland. This natural glandular material is processed by lyophilization of glands derived from government-inspected, range-fed animals, raised in New Zealand without hormones or antibiotics. The material is frozen, then subjected to a high vacuum that vaporizes moisture directly from the solid state, thereby maintaining its biological activity. Other ingredients: Hydroxypropyl methylcellulose, microcrystalline cellulose, L-leucine.;This nutrient is of the highest quality and purity obtainable, free of all common allergens (antigens), and does not contain preservatives, diluents, or artificial additives.;Variations in product color may occur. Keep in a cool, dry place, tightly capped. ;Suggested Use: As a dietary supplement, 1 or 2 capsules two or three times daily with meals, or as directed by a healthcare practitioner.