Selenium is a trace element the body needs in tiny but essential amounts, taking part in numerous enzymatic reactions, notably within the selenoproteins that play a key role in cellular protection and hormone metabolism. The body cannot make selenium itself, so it must come from diet or supplementation. European soils are generally lower in selenium than other parts of the world, so dietary intake does not always cover optimal needs, particularly for people in cities like Paris or on restrictive diets.

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Not all forms of selenium are equal. L-selenomethionine is an organic form that mirrors the selenium naturally found in dietary protein. Unlike inorganic forms such as sodium selenite or selenate, it follows the same absorption pathway as methionine, an essential amino acid. After intestinal absorption, L-selenomethionine integrates directly into muscle tissue and storage proteins, where it is released as the body needs it — offering more sustained availability than inorganic forms, which are quickly excreted in urine.

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Under EU-authorised health claims, selenium contributes to the normal function of the immune system, to the protection of cells from oxidative stress, to the maintenance of normal hair and nails, to normal thyroid function, and to normal spermatogenesis. Selenium sits at the heart of glutathione peroxidase, one of the body’s most important antioxidant enzymes, and the thyroid is one of the most selenium-concentrated organs, using it to convert T4 into the active thyroid hormone T3.

Prefer tablets? See also Selenium 100 µg by NOW Foods.

Take 1 capsule per day, ideally with a meal to support absorption, providing 55 mcg of elemental selenium, 100% of the Nutrient Reference Value (NRV) for an adult. Selenium pairs well with vitamin E or vitamin C for mutually reinforcing antioxidant support, and with zinc and iodine for thyroid function. The bottle of 60 capsules covers exactly two months at one capsule a day.

Food supplement. Not a substitute for a varied, balanced diet and a healthy lifestyle. Do not exceed the recommended daily dose. If your diet already provides substantial selenium (fish, offal, Brazil nuts, fortified cereals), seek medical advice before supplementing to avoid excess intake.

What is the difference between L-selenomethionine and selenium yeast?

L-selenomethionine is a pure, isolated form of organic selenium with tightly controlled composition. Selenium yeast is produced by growing yeast in a selenium-enriched medium — it yields organic selenium too, but also brings along yeast residues and other uncontrolled compounds. L-selenomethionine offers a better purity guarantee and suits people with yeast intolerance.

Can selenium be combined with other supplements?

Yes, it pairs well with vitamin E, vitamin C and zinc for complementary antioxidant support, and with iodine for thyroid function. Follow the recommended doses for each nutrient and ask a healthcare professional if in doubt.

Is Dynveo Selenium suitable for vegetarians and vegans?

Yes. It comes in a pullulan vegetable capsule with no animal-derived ingredients, is free from yeast, gluten, lactose and chemical additives, and is not tested on animals.

Herba Barona is an independent specialist supplement shop in the heart of Paris — established in 2006. What you order is genuinely on our shelves: we ship from our own stock, with no dropshipping and no long waits.

Visit us at 10 rue Théophile Roussel, Paris 12 — or use Click & Collect and pick up your order in-store. We also deliver across France and Europe. Friendly, expert advice in English from our team.

Where is the shop?

Herba Barona is at 10 rue Théophile Roussel, 75012 Paris — a two-minute walk from Ledru-Rollin (line 8), close to Bastille. Open Tuesday to Saturday, 9:30 am–6:30 pm.

Can I order online or collect in store?

Yes. We ship across France and Europe under the same conditions as our French store, or choose Click & Collect to pick up your order for free at our Paris shop.