TG 100 Natural Glandular provides carefully sourced, freeze-dried thyroid tissue alongside additional glandular tissue to support thyroid and immune health (adrenal, pancreas, thymus, and spleen).* Vitamin C as ascorbic acid is also included to support absorption and immune health.* Derived from range-grazed, government-inspected animals in New Zealand and Australia, this traditional glandular preparation preserves key nutrients and bioactive compounds to support thyroid, immune health, and vitality.* Capsule color may look darker. This reflects our move toward a cleaner, more hypoallergenic formulation with fewer excipients. The product's quality and potency remain exactly the same.