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Selenium Guide

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Selenium raises a high level of health concern and is of regulatory concern because:

  • This ingredient is authoritatively classified as "known to be neurotoxic in man," according to the medical literature (Article by P Grandjean and PJ Landrigan in Lancet)
  • This ingredient is suspected of causing neurotoxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing gastrointestinal or liver toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing kidney toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing musculoskeletal toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing cardiovascular or blood toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing respiratory toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing developmental toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing reproductive toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing cancer, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is suspected of causing skin or sense organ toxicity, according to sources compiled by Scorecard (www.scorecard.org)
  • This ingredient is potent via ingestion and capable of causing adverse effects at low doses.
  • Indicates the relative potency of an ingredient in this product, based on EPA's Toxicity Weight for inhalation exposures. Chemicals with higher potency are capable of causing toxic effects at lower doses.
  • This ingredient has been banned for use in cosmetics in Japan.
  • This ingredient has been banned for use in cosmetics in Canada.

More information on Selenium...

From Wikipedia

Selenium (pronounced /sɨˈleːniəm/ or pronounced /sɨˈliːniəm/ sə-LEE-nee-əm) is a chemical element with the atomic number 34, represented by the chemical symbol Se, an atomic mass of 78.96. It is a nonmetal, chemically related to sulfur and tellurium, and rarely occurs in its elemental state in nature.

Isolated selenium occurs in several different forms, the most stable of which is a dense purplish-gray semi-metal (semiconductor) form that is structurally a trigonal polymer chain. It conducts electricity better in the light than in the dark, and is used in photocells (see section Allotropes below). Selenium also exists in many non-conductive forms: a black glass-like allotrope, as well as several red crystalline forms built of eight-membered ring molecules, like its lighter cousin sulfur.

Selenium is found in economic quantities in sulfide ores such as pyrite, partially replacing the sulfur in the ore matrix. Minerals that are selenide or selenate compounds are also known, but are rare. The chief commercial uses for selenium today are in glassmaking and in chemicals and pigments. Uses in electronics, once important, have been supplanted by silicon semiconductor devices.

Selenium salts are toxic in large amounts, but trace amounts of the element are necessary for cellular function in most, if not all, animals, forming the active center of the enzymes glutathione peroxidase and thioredoxin reductase (which indirectly reduce certain oxidized molecules in animals and some plants) and three known deiodinase enzymes (which convert one thyroid hormone to another). Selenium requirements in plants differ by species, with some plants apparently requiring none.[3]...

Products containing Selenium

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