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About Thyrovanz®

Thyrovanz® is a bovine thyroid glandular supplement produced by Provanz Supplements Inc.  We only use the thyroid glands of pasture fed cows that have been raised hormone and GMO free. Thyrovanz® is designed to support thyroid function and bring back energy and vitality the way nature intended by using natural ingredients.*  Created by people who are passionate about health, we can guarantee its quality. Grown in New Zealand, manufactured and shipped from America, with Thyrovanz® you get the best of both worlds.