Organic Selenium
Amino acid-chelated selenium. High bioavailability for antioxidant, immune support, and thyroid health applications.
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Amino acid-chelated selenium. High bioavailability for antioxidant, immune support, and thyroid health applications.
Request a SampleSelenium is an essential trace mineral with outsized biological importance relative to its required intake. The RDA is 55 mcg per day, a level many people in North America and Europe do not consistently reach through diet alone. The most common supplemental forms, sodium selenite and selenium dioxide, are inorganic salts with limited bioavailability and a narrow margin between the recommended dose and the upper tolerable intake level of 400 mcg. Organic selenium, chelated to an amino acid, absorbs more efficiently and is better retained at tissue level.
The primary function of selenium in the body is as a component of selenoproteins, specifically the glutathione peroxidase (GPx) enzyme family. These selenoproteins are the body's primary selenium-dependent antioxidant system, reducing hydrogen peroxide and lipid peroxides to protect cells from oxidative damage. This is the direct biochemical basis for selenium's role in antioxidant supplement formulations.
Selenium is also required for the conversion of T4 to T3, the conversion from storage thyroid hormone to the biologically active form. This makes it particularly relevant for thyroid support formulas and women's health products where thyroid function is a common concern. Independently, selenium supports T-cell and NK cell activity for immune applications, and acts as an antioxidant cofactor in skin cells for UV protection and anti-aging positioning.
At 3% elemental selenium content, just 1.83 mg of ingredient delivers the 55 mcg RDA. This low inclusion rate matters for formulators working within tight capsule or tablet weight budgets. It also means the high-bioavailability form does not compete for fill weight in complex multi-ingredient formulas.
| Parameter | Value |
|---|---|
| Form | Organic selenium complex (amino acid chelated) |
| Elemental selenium content | 3% |
| Bioavailability | High |
| Solubility | High |
| Appearance | White to off-white fine powder |
| Shelf life | 18 months |
| Pack sizes | 5 kg, 10 kg, 25 kg |
Selenoproteins (GPx family) are the primary selenium-dependent antioxidant enzymes. Organic selenium is a mechanistically sound addition to antioxidant formulas alongside vitamin E and vitamin C.
Selenium supports T-cell proliferation, NK cell activity, and cytokine production. A natural complement to zinc and vitamin D in immunity-focused formulas.
Selenium is required for the conversion of T4 to T3, the active thyroid hormone. Relevant for thyroid support products, women's hormone health formulas, and energy and metabolism supplements.
Combines thyroid support, antioxidant activity, and reproductive health benefits. A common co-ingredient with iodine, magnesium, and zinc in comprehensive women's formulas.
Selenium supports spermatogenesis and male reproductive health. Standard inclusion in men's multivitamins and fertility support formulas.
Selenium acts as an antioxidant cofactor protecting skin from UV-induced oxidative stress. Relevant for beauty-from-within and skin health supplement applications.
| Document | Availability |
|---|---|
| Certificate of Analysis (COA) | Available upon request |
| Technical Data Sheet (TDS) | Available upon request |
| Allergen Statement | Available upon request |