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Key Benefits

Suggested Use

Important Notices

Support for Thyroid Health*

Selenium supports normal thyroid function in healthy individuals and is important for the proper functioning of the thyroid gland.* It is also necessary for converting the thyroid hormone T4 (thyroxine) to the active T3 form (triiodothyronine).* Healthy thyroid function benefits energy levels, metabolism, mood, and healthy hair and skin.* 

Supporting Healthy Aging*

Selenium benefits powerful antioxidant functions in your body by supporting the glutathione and superoxide dismutase systems.* Antioxidants like selenium help reduce oxidative damage in the body and brain caused by excess free radicals from environmental toxins, smoking, alcohol use, and stress, while supporting healthy skin, hair, and cognitive function.* 

Promoting Optimal Immune Function*

Selenium plays an important role in the body’s immune health.* Its antioxidant properties support a healthy inflammatory response and promote optimal immune function.* Studies have shown that an optimal selenium level is associated with a healthy immune response.* 

Heavy Metal Protection*

Selenium supplementation also might exert a protective effect against mercury, cadmium, and other toxic heavy metals.*

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, such as heavy metals, pesticides, and microorganisms.

Thorne

Selenium

Selenium is an important trace mineral, and as an "essential" nutrient, your body does not produce selenium on its own. Therefore, it must come from diet or supplementation. Low levels of selenium can have an adverse impact on the heart, joints, eyes, and the immune, endocrine, and reproductive systems.* 

Maintaining an optimal selenium level supports normal cell function and differentiation, and healthy heart, connective tissue, eye, liver, and thyroid function.* Selenium is a great mineral to help preserve a healthier body and support healthy living.* 

Thorne’s Selenium uses the purest form of selenium – bound to methionine for optimal absorption – without adding unnecessary additives or preservatives.

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Thyroid Support

Thyroid Support

Thyroid Support

Heavy Metal Protection

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2 Embarcadero Center, Floor 8, San Francisco, CA 94111

HIPAA Compliant · CLIA Certified · CAP Accredited · Quest Diagnostics Partner · HSA/FSA Eligible

Sign up for the latest in personalized health, insights, and updates.

© 2026 Hundred. All rights reserved

2 Embarcadero Center, Floor 8, San Francisco, CA 94111