Young couple jogging oo a beach / Selenium Collection. Young couple jogging oo a beach / Selenium Collection.

Selenium Tablets & Supplements

Selenium is an important trace mineral that plays a number of vital roles in the body. Selenium contributes to the normal function of the immune system, as well as to the maintenance of normal hair and nails. Selenium is found in a range of foods including brazil nuts, meat and fish, cottage cheese and eggs. If you feel you are not getting enough from your diet, a supplement could help safeguard your intake. Our range of selenium supplements includes selenium tablets, as well as multivitamins with selenium and other nutrients to support your health and wellbeing.

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Ultra Selenium
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Selenium for Immune System Support

The immune system is a complex network of cells, tissues and organs that work together to help keep us healthy. It requires a range of nutrients to help it work properly, including selenium and vitamin C. Selenium is a key component of various enzymes and proteins, called selenoproteins. You can learn more in our guide to the 8 Best Vitamins to Support Your Immune System


As it plays a key role in supporting normal immune function, selenium is included in many of our Immune System Vitamins, including high-quality selenium tablets. 


Our guide to Supporting Your Immune System explains more about the immune system, why it is so important and how best to support it. 

Selenium for Hair and Nails

Just like other areas of your health, a lack of the right nutrients can impact the health of your hair and nails. Important nutrients for hair include biotin and zinc, as well as selenium for hair which helps to maintain normal hair. Selenium is also important to support nail health. Find out more about how to support your nails with celebrity manicurist, Michelle Humphrey, who Talks All Things Nail Health.

A selenium dietary supplement for hair and nails can be a convenient way to round out any gaps in your diet. Browse our range of Hair, Skin & Nails Vitamins to find something to support your needs.

Explore our different types of vitamins for your health & dietary needs.

Frequently Asked Questions

Selenium is an essential trace mineral. We don’t produce it in our bodies, which means that we need to obtain it from our diet. Selenium is involved in many vital processes in the body, from the maintenance of normal hair and nails, to the normal function of the immune system. Learn more in our guide: Selenium explained: What Is It & What Is It Good For?

Ultra Selenium provides 165 µg of premium quality selenium, combined with vitamins C and E, plus Acai Berry from Brazil. Selenium, vitamin C and vitamin E all contribute to the protection of cells from oxidative stress.

Selenium plays a number of important roles in the body, including the normal function of the immune system, as well as normal thyroid function. Selenium also contributes to normal hair and nails, and the protection of cells from oxidative stress, caused by free radicals.

Selenium contributes to the normal function of the immune system as well as normal thyroid function. Learn more about Supporting Your Immune System in our guide. 

Many of our immune system vitamins include selenium, along with other immune supporting nutrients, such as vitamin D, vitamin C and zinc.

Selenium contributes to the maintenance of normal hair. Perfectil Hair combines extra selenium* with key nutrients, including extra biotin*, which also contributes to normal hair, as well as copper which contributes to normal hair pigmentation. Perfectil Hair also provides marine collagen and grape seed extract.

*Compared to Perfectil Original

Selenium helps to support normal nails. Our Perfectil Nails formula provides specially selected nutrients, including extra selenium* which contributes to the maintenance of normal nails, as well as biotin to support normal skin and zinc to help maintain normal hair. Perfectil Nails also provides Horsetail botanical extract and MSM.

Brazil nuts are the richest source of selenium, with 28g (six to eight nuts) providing around 544μg of selenium, so you can go over the upper recommended limit if you eat too many. Seafood is also an excellent source of selenium, particularly yellowfin tuna, as well as oysters, clams, salmon, and crab. You’ll also find selenium in meats, such as beef, pork and turkey, as well as in cottage cheese and eggs. Some of the best plant based sources include brown rice, mushrooms, spinach and bananas.

The recommended daily allowance in the UK for selenium is 75μg (micrograms) per day for men aged 19-64 and 60 micrograms per day for women.

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