Thorne Research

Selenium

$14.00

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The Promise

Product identity and formulation Pure L‑selenomethionine in a single‑ingredient dose

Thorne Research Selenium delivers selenium as L‑selenomethionine in a vegetarian capsule with NSF Certified for Sport® purity.

Ingredient and form

Contains 200 mcg selenium per capsule as L‑selenomethionine (one ingredient providing the mineral).

Dosage format

One capsule per serving; 60 servings per bottle.

Non‑active components

Capsule made with hypromellose; microcrystalline cellulose used as filler.

Quality certification

NSF Certified for Sport®—tested for purity and banned substances.

Why It Works

Distinct formulation facts Specific form, amount, and biological roles supported by the formulation

Key facts you can verify on the label and in the formulation.

01

Bioavailable form*

Uses L‑selenomethionine, the form of selenium naturally found in food and noted for superior absorption.*

02

Quantified dose

Provides 200 mcg selenium per capsule (listed on Supplement Facts).

03

Enzymatic cofactor role

Selenium is a component of glutathione peroxidase—an antioxidant enzyme referenced on the label.

04

Thyroid nutrient role

Label notes selenium’s role in enzymes involved in thyroid hormone conversion.

Reviews

Customer Reviews

Your Journey

How to use and safety notes Clear serving, storage, and precautions from the label

Follow labeled directions and precautions; consult your practitioner when advised.

Serving

Suggested use

Take 1 capsule daily or as recommended by your health‑care practitioner.

Packaging & count

Supply

60 capsules per container; one capsule constitutes one serving.

Pregnancy precaution

Pregnancy warning

If pregnant, consult your health‑care practitioner before using this product.

Allergy & interactions

Contraindications and interactions

Contraindicated with a history of hypersensitivity to any ingredient; label lists no known adverse interactions at publication date.

Product education

Selenomethionine: A Highly Absorbable Selenium for Thyroid and Antioxidant Support*

Thorne’s Selenomethionine provides a potent dose of selenium, an essential trace mineral, in its most bioavailable and well-researched form. Selenium is a crucial component of the body’s primary antioxidant enzyme, glutathione peroxidase, and is vital for a healthy immune response, thyroid function, and reproductive health. This formula delivers pure L-selenomethionine, the form of selenium naturally found in food, to ensure optimal absorption and benefit for foundational wellness.*

How It Works: The Power of a Master Antioxidant

Selenium exerts its benefits primarily by acting as a powerful antioxidant and a necessary cofactor for key enzymes.*

Support for Thyroid and Immune Function
The thyroid gland contains the highest concentration of selenium in the body. This is because selenium is required for the enzyme that converts the T4 thyroid hormone into its active T3 form. Therefore, an adequate level of selenium is essential for maintaining a healthy metabolism and energy levels. In the immune system, selenium supports the function of white blood cells and helps to maintain a balanced inflammatory response.*

Enhancing Antioxidant Defenses
Selenium is a critical component of glutathione peroxidase, which is one of the body’s most important antioxidant enzymes. This enzyme helps to neutralize damaging free radicals, particularly in the liver, protecting cells from oxidative stress. By providing a highly absorbable form of selenium, this supplement bolsters the body’s entire antioxidant network and supports healthy aging.*

  • Features L-selenomethionine for superior absorption and bioavailability*
  • Provides essential support for healthy thyroid function and hormone conversion*
  • Promotes a robust immune response and a balanced inflammatory state*
  • A crucial component of the body’s master antioxidant, glutathione
  • NSF Certified for Sport®, trusted for purity and safety

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: Take 1 capsule daily or as recommended by your health-care practitioner.
Serving Size: One Capsule
Servings Per Container: 60
Ingredient Amount %DV
Selenium (as L-Selenomethionine) 200 mcg 364%
Other ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule.
*Daily Value (DV) not established.
ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.
PREGNANCY If pregnant, consult your health-care practitioner before using this product.
INTERACTIONS There are no known adverse interactions or contraindications at publication date.