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Pure Encapsulations Selenium (citrate)

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Highly bioavailable form; supports antioxidant defenses, immune function and cellular health. Ships to the US only.

Supports antioxidant defenses and cellular health‡
Provides immune system support‡
Promotes healthy blood flow‡
May help support healthy growth and fertility‡
Available in citrate and selenomethionine forms
Made with high-quality vegan ingredients backed by verifiable science


Selenium is an essential cofactor for glutathione peroxidases, which maintain antioxidant defenses by inactivating hydrogen peroxide.1 Selenium also supports iodine metabolism to maintain healthy thyroid hormone production.1 This trace mineral is also involved in the production of certain prostaglandins that promote healthy blood flow.2 Selenium may also support healthy growth and fertility, as indicated in a research study using a combination of selenomethionine and vitamin E.3 Selenium also provides support for the immune system.4 Selenomethionine is an organic form of the mineral that occurs naturally in Brazil nuts and legumes, and consists of selenium bound to the amino acid methionine. During digestion, selenium is released from methionine. Selenium is absorbed primarily in the duodenum and proximal small intestine and transported to tissues via specialized transport proteins.1‡


Ages 18 and up
Healthy cell function and immune health support‡

As a dietary supplement, take 1 capsule daily, with a meal, or as directed by a health professional.


If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.