About the product
- Contains Nutrients and Botanicals That Enhance T4 Levels - iodine, tyrosine, and ashwagandha*
- Provides key nutrients for peripheral conversion of T4 to T3 - selenium, zinc, and copper*
- Helps optimize metabolism*
- Third-Party Certified: This product has been third-party tested and certified to verify what\'s in the package matches what\'s on the label and to confirm it contains no unsafe levels of contaminants
- Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners
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