The use of supplements which contain animal glands extracts becomes more and more pressing and is based on the concept that ‘like supports like’. That is, if we consume animal thymus, this would benefit our own thymus. The Swanson glandular supplements are made of raw, cold-pressed glandular bovine tissue only, collected from farms, which are under the control and inspection of the USDA (US Department of Agriculture). This high-quality tissue is dried, defatted (if necessary) and powdered at cGMP, certified laboratories in Nebraska.