Thorne Selenium gives 200 mcg of selenium in each vegetarian capsule as L-selenomethionine, a form of selenium bound to an amino acid. A bottle holds 60 capsules. Selenium is an essential trace mineral that your body uses in antioxidant enzymes and in thyroid hormone metabolism. This is a high strength selenium product, so read the dose notes below before you add it to other supplements.
At a glance
| Detail | Thorne Selenium |
|---|---|
| Brand | Thorne |
| Type | Selenium capsule |
| Per capsule | 200 mcg selenium (as L-selenomethionine) |
| Size | 60 vegetarian capsules |
| Label directions | 1 capsule daily |
| Diet notes | Free from gluten, dairy and soy. Non-GMO |
What is in it
The only active ingredient is selenium. Adults need about 60 to 70 mcg a day, and most people get it from foods such as seafood, eggs, meat, grains and Brazil nuts.
How 200 mcg compares. The adult upper level from all sources in the Australian and New Zealand Nutrient Reference Values is 400 mcg a day. Australian supplement labels also carry a warning not to exceed 150 mcg of selenium a day from supplements. One capsule of this product is 200 mcg, which is above that 150 mcg warning level, so it is best used on the advice of a health professional and not combined with any other selenium product.
Who it suits
- Adults whose doctor or dietitian has suggested a selenium supplement at this strength.
- People who want selenium by itself, in the selenomethionine form.
Who should check first
- Taking a multivitamin or another selenium product: do not double up. Add up every source.
- Thyroid conditions: speak to your doctor before taking selenium.
- Pregnant or breastfeeding: check with your doctor first.
- Taking medication: check with your doctor or pharmacist.
How to use it
Take 1 capsule daily, or as recommended by your healthcare provider. Do not take more. Signs of too much selenium include a garlic smell on the breath, brittle nails, hair loss and nausea. Stop taking it and see your doctor if these happen.
Where to buy Thorne Selenium in Melbourne and Australia
Shop Thorne Selenium 200 mcg online at Supps247 with Australia-wide delivery, or order online and use click and collect at Supps247 stores that offer online pickup. Stock varies by store, so check online or use the store locator before you travel. You can also browse our full vitamins range.
FAQs
How much selenium is in each capsule?
200 mcg, as L-selenomethionine.
Can I take it with a multivitamin?
Check the multivitamin first. If it already contains selenium, the two together will push you further over the 150 mcg supplement warning level.
Details checked against the product listing on 12 November 2026. Formulas can change, so always read the label on the product you buy and follow the directions.
This article is general information, not medical advice.
