Hypoallergenic. Thymus Natural Glandular. 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. . This nutrient is of the highest quality and purity obtainable is free of all common allergens (antigens) and does not contain preservatives diluents or artificial additives.