SYNERGISTIC FORMULA WITH 12 ACTIVES FOR THYROID FUNCTION: Thyroid Zen combines L-Tyrosine (300mg), Ashwagandha extract standardised to 10% Withanolides (150mg), Guggul extract at 2% Esterones (30mg), Selenium as Selenomethionine and Zinc as Bisglycinate, two highly bioavailable forms, together with Manganese, Copper and Vitamins A, B2,