Provides high quality thyroid tissue, formulated according to strict specifications by Allergy Research Group® and Dr. Nicholas Gonzalez M.D. This product is sourced from range-fed animals raised Australia and New Zealand, where animal husbandry regulations prohibit the feeding and veterinary practices that have caused problems in other countries.* The material is lyophilized, meaning immediately frozen and subjected to a high vacuum that removes the moisture. This sophisticated technique respects the delicate nature of the material, and except for the water content, leaves in everything that naturally occurs in glandular tissue.* Our glandulars are subject to in-process and finished product testing.