Thyroid Support Complex
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Vitamin A268 systematic reviews · 830 randomised trials | 300 mcg RAE |
| Vitamin B12141 systematic reviews · 337 randomised trials | 200 mcg |
| Iodine101 systematic reviews · 210 randomised trials | 350 mcg |
| Sensoril | 500 mg |
| L-Tyrosine41 systematic reviews · 516 randomised trials | 200 mg |
| GS15-4 fermented Korean Ginseng extract | 200 mg |
| Guggul | 100 mg |
Certifications & Testing
Other Ingredients
Cellulose, Microcrystalline Cellulose, Gum Acacia, Maltodextrin, Silica, Stearate, Dicalcium Phosphate, Food Starch, Modified
Recommended Use
Directions: Take one (1) capsule twice daily, preferably early in the day, or as recommended by a healthcare practitioner.
Warnings
Read the entire label and follow the directions carefully prior to use. Caution: If you have a thyroid condition or are taking antithyroid medications, do not use without consulting your healthcare practitioner. Warnings: Keep out of reach of children. Do not exceed recommended dose. Do not purchase if outer seal is damaged. Consult with your physician if you are undergoing treatment for a medical
Frequently Asked Questions
What is Life Extension Thyroid Support Complex's Formulate score?
Life Extension Thyroid Support Complex scores 90 out of 100 (grade A) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Life Extension Thyroid Support Complex worth it?
Life Extension Thyroid Support Complex scores 90/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Life Extension Thyroid Support Complex?
Each serving contains Vitamin A (300 mcg RAE), Vitamin B12 (200 mcg), Iodine (350 mcg), Sensoril (500 mg), and more. Serving size: 2 Capsule(s). 30 servings per container.
How do I take thyroid support complex?
Directions: Take one (1) capsule twice daily, preferably early in the day, or as recommended by a healthcare practitioner.
Who makes Thyroid Support Complex?
Thyroid Support Complex is made by Life Extension. See Formulate's full grade and product lineup for Life Extension on its brand page.
Is Life Extension Thyroid Support Complex third-party tested?
Life Extension lists the following certifications and testing for this product: Gluten free Non GMO LE Certified, Gluten-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.