If you search online for selenium benefits for skin, you quickly find bold promises about glowing complexions, fewer wrinkles and calmer breakouts. It sounds appealing – but what does good-quality research actually say?

Selenium is an essential trace mineral. Your body only needs tiny amounts, but it cannot work properly without it. Because selenium sits inside several antioxidant and immune-related systems, there is a logical link between selenium and skin health.[1][2] In this article, we’ll walk through what scientists and clinicians have found so far, in clear language for non-medical readers.

We will look at how selenium works, what studies say about selenium for skin ageing and common skin conditions, what happens when levels are too low or too high, and how to get selenium safely – especially from a UK perspective.

1. How selenium works in your body and your skin

Selenium is used to build special proteins called selenoproteins. Many of these act as antioxidants, helping to protect your cells from everyday damage caused by “free radicals” and oxidative stress.[1] Your immune system and thyroid gland also rely on these selenoproteins to work normally.[1][2]

Your skin faces constant stress from sunlight, air pollution, weather and normal metabolism. Over time, this contributes to fine lines, wrinkles and changes in texture. Because selenium is part of the enzymes that neutralise some of this damage, it makes sense that people talk about selenium benefits for skin.[1][2]

Laboratory work supports this link between selenium and skin biology. In one study using artificial skin models, adding selenium helped protect keratinocytes (the main skin cells) from UV-induced damage and cell death. Selenium also seemed to help these cells keep their ability to renew themselves and delayed some signs of cell ageing.[3] This suggests a biological basis for using selenium for skin resilience.

Severe selenium deficiency is uncommon in the UK, but low intakes can affect hair, nails and skin over time.[1] Reports in the nutrition literature describe dry, fragile skin and hair problems that improve once selenium intake is corrected.[1] That does not mean more and more selenium will keep boosting selenium benefits for skin – it simply shows that a lack of selenium can cause problems.

In day-to-day life, most realistic selenium benefits for skin are likely to come from:

Supporting your natural antioxidant systems
Helping skin cells cope with UV exposure
Supporting immune and thyroid function, which indirectly affect skin health[1][2][3]

Getting enough selenium for skin is therefore part of general health, not a stand-alone beauty trick.

2. Selenium, skin ageing and “glow”

Skin ageing is driven by both intrinsic factors (your genes and the passage of time) and extrinsic factors, such as sun exposure, pollution, smoking and stress. Oxidative stress is a common pathway in many of these processes, which is why selenium benefits for skin are often mentioned in the context of ageing.[2][3]

2.1 What do studies show?

The strongest evidence for selenium and skin ageing comes from a mix of laboratory studies and broader health research:

In skin models, selenium protected cells against UV damage and delayed some markers of cellular ageing.[3] This backs up the biological link between selenium and skin resilience.
A large meta-analysis of cohort studies found that people with better selenium status tended to have a lower risk of dying from any cause over time.[5] When the whole body ages in a healthier way, the skin often looks and feels better too, so selenium may play a small background role here.
A clinical trial in women with sun-damaged facial skin tested an oral “anti-ageing skin” supplement that contained several antioxidant nutrients, including selenium, vitamins C and E and zinc.[6] After four months, the supplement group had better skin elasticity, smoother wrinkles and improved texture compared with placebo.[6] Because many nutrients were included, we cannot say selenium alone caused the benefits – but the trial supports the idea that antioxidant nutrients, including selenium for skin, may help photo-damaged skin as part of a wider approach.

Overall, there are genuine selenium benefits for skin at the level of cell biology, and there is some supportive human evidence. However, there are no large trials where selenium alone was used purely as a wrinkle or “glow” treatment. Selenium looks more like a quiet helper in the background than a magic anti-ageing pill.

2.2 A realistic view on glow and fine lines

Putting this together:

Selenium has a clear role in antioxidant enzymes in the skin.[1][3]
Laboratory studies show that selenium and skin cells interact in ways that protect against UV damage and some ageing processes.[3]
Human trials suggest possible benefits of nutrient combinations, including selenium for skin with sun damage, but they do not prove that selenium by itself will transform your skin.[6]

If you are thinking about selenium for skin because of dullness or fine lines, it is useful to see it as one tool among many. Daily sunscreen, not smoking, eating a varied diet, managing stress and having a simple skincare routine will almost certainly have a bigger effect on your complexion than tweaking selenium alone – but having healthy selenium levels in the background does make sense.

3. Selenium and common skin conditions

People also ask about selenium benefits for skin problems such as acne, eczema and psoriasis. Here, the research is more specific – and more mixed.

3.1 Who tends to have lower selenium levels?

A 2020 systematic review and meta-analysis looked at selenium status in different skin diseases.[7] Overall, it found that:

People with acne vulgaris often had lower blood selenium levels than people without acne.
Lower selenium levels were also seen in some patients with psoriasis and atopic dermatitis (eczema).[7]

This suggests that poor selenium status may be more common in certain inflammatory skin conditions. Oxidative stress is part of the biology of acne, eczema and psoriasis, so low antioxidant nutrients – including selenium and skin-related defences – may be involved.

These findings support the idea that, in these conditions, improving selenium status could form part of a wider treatment plan. They do not prove that selenium alone can clear any particular skin disease.

3.2 Selenium and skin prone to acne

One modern randomised, double-blind, placebo-controlled trial tested a nutraceutical supplement for mild to moderate acne in young adults.[8] The supplement contained several ingredients, including selenium, zinc, vitamins A, C and E and plant extracts.

After 12 weeks:

People taking the supplement had a larger reduction in inflammatory spots and blackheads compared with placebo.
On average, inflammatory lesion counts roughly halved in the supplement group, while the placebo group saw only small changes.[8]
Participants also reported better quality of life.[8]

Because the product contained many active ingredients, we cannot say the benefits came from selenium alone. What we can say is that, in this study, a nutrient-rich combination that included selenium for skin prone to acne was helpful as part of a broader routine.

In practice, this means that supporting overall nutrition – including realistic selenium benefits for skin – may help people whose diets are low in antioxidants, but medical treatments and suitable skincare are still central for acne.

3.3 Selenium and psoriasis – why more was not better

Psoriasis is another inflammatory skin disease where low selenium levels have been reported.[7] This led to a UK trial of high-dose selenium plus vitamin E in psoriasis patients.[9] Participants took 600mcg of selenium per day (as selenium yeast), a dose far above usual dietary needs.

The results were disappointing:

Blood selenium levels rose, showing that the supplement was absorbed.
Psoriasis severity did not improve over 12 weeks.
Selenium levels in skin samples did not increase, even with the large dose.[9]

This suggests that simply taking very high doses of selenium for skin is not helpful in psoriasis, and that there may be limits to how much extra selenium the skin can actually use.

The trial is an important reminder that selenium benefits for skin do not keep increasing as you take more. In fact, very high doses can be risky (see section 5).

3.4 Other conditions and realistic expectations

The same systematic review did not find consistent differences in selenium levels for every skin condition studied.[7] Selenium’s clearest recognised roles in clinical nutrition remain:

Helping to maintain normal hair and nails
Contributing to the protection of cells from oxidative stress[1]

Taken together:

There is evidence of a link between poor selenium status and some skin diseases.
Clinical trials suggest that multi-nutrient supplements (including selenium for skin) may support acne management.[8]
High-dose selenium alone has not worked as a stand-alone psoriasis treatment.[9]

So, selenium and skin disease are connected in complex ways. Using supplements should be seen as an add-on to, not a replacement for, professional medical care.

4. Getting enough selenium for skin health in the UK

A natural question is whether people in the UK usually get enough selenium for skin health from food alone.

4.1 Selenium intakes and RNIs

In the UK, selenium intake has fallen since the 1970s, mainly because the country now imports less high-selenium wheat from North America.[1][4] Current reference nutrient intakes (RNIs) are:[4]

75mcg per day for adult men
60mcg per day for adult women

National surveys suggest that average intakes are often around or below these targets, so some people may have marginally low selenium status.[4] That is one reason why discussions about selenium benefits for skin are common: people wonder whether a small gap between their intake and the RNI might show up in their skin, hair or nails.

4.2 Food sources and overall diet

Good food sources of selenium include:[1][2]

Brazil nuts (very rich – one or two nuts can meet a whole day’s requirement)
Seafood such as tuna, cod and prawns
Meat and poultry
Eggs
Wholegrains and some mushrooms

UK dietetic guidance stresses that a varied diet rich in vitamins and minerals – including selenium – is important for skin health, and that deficiencies in these nutrients can contribute to skin problems.[2] Many of the day-to-day selenium benefits for skin are therefore likely to come from eating selenium-containing foods regularly, alongside other nutrient-dense choices.

From this perspective, selenium and skin health sit inside a wider picture: plenty of colourful vegetables and fruit, enough protein, healthy fats, adequate hydration and good sleep all matter, with selenium quietly doing its job in the background.

5. Supplements, safety and why “more” is not better

Because of marketing around selenium benefits for skin, it can be tempting to think that a supplement will automatically give you glowing skin. In reality, supplements are most useful when there is a clear reason to correct low intake, and the dose stays within safe limits.

5.1 When might a supplement help?

A modest selenium supplement may be considered when:

Blood tests or diet history show low selenium intake
You follow a very restrictive diet with very little seafood, meat or eggs
A healthcare professional suggests trying selenium as part of a wider plan for overall health, which may also affect your skin

In these situations, a moderate supplement dose (for example 50–200mcg per day, depending on medical advice) can help bring intake into a healthy range without exceeding safe limits.[1][4][10]

If you and your clinician decide that a supplement is appropriate, it can be sensible to choose a simple, well-dosed capsule rather than an overly complex mixture. For example, you might look at a straightforward single-nutrient product such as Capsure’s best selenium supplement and then confirm with your GP or pharmacist that the dose and form are suitable for you. Even then, it is important to keep realistic expectations: a supplement can support your selenium status, but it will not replace sunscreen or a balanced lifestyle when it comes to selenium for skin and overall appearance.

5.2 Upper limits and signs of too much

Selenium has a relatively narrow safe range. The European Food Safety Authority has set a tolerable upper intake level for adults of 300mcg per day, and US guidance suggests an upper level of 400mcg per day, including food and supplements.[10]

Regularly going above these levels can lead to selenosis, a form of chronic selenium toxicity.[10] Early signs can include:

A metallic taste in the mouth
A garlic-like smell on the breath
Nausea or stomach upset

More established toxicity may cause:

Hair loss
Brittle or damaged nails
Skin rashes and lesions
Irritability and nerve-related symptoms[10]

Ironically, taking very high doses of selenium for skin can end up damaging hair, nails and skin – the opposite of what most people are hoping for from selenium benefits for skin.

5.3 High-dose trials and skin cancer

High-dose selenium has also been tested for preventing certain cancers. A large US trial gave 200mcg of selenium per day to people with a history of non-melanoma skin cancer.[11] The supplement did not reliably prevent new skin cancers. Some analyses even suggested a slightly higher risk of certain skin cancers in the selenium group, though the findings are complex and still debated.[10][11]

The take-home message is that long-term high-dose selenium for otherwise well-nourished people does not appear to add extra selenium benefits for skin and may carry risks. Staying within recommended intakes is the safer choice.

6. What do official bodies say about selenium and skin?

In the EU and UK, authorised health claims for selenium include that it:

Contributes to the maintenance of normal hair and nails
Contributes to the protection of cells from oxidative stress[10]

These claims reflect the recognised roles of selenium in cell protection and in hair and nail health. However, there is no authorised claim that selenium for skin:

Makes the skin “glow”
Erases wrinkles
Treats acne, eczema or psoriasis

So, any product promising dramatic selenium benefits for skin – all by itself – is going beyond what regulators allow and what the current science supports.

UK organisations such as the British Dietetic Association encourage a holistic approach to selenium and skin health: a balanced diet, staying hydrated, not smoking, protecting your skin from the sun and using skincare products suited to your skin type.[2] Within that wider routine, making sure you have enough selenium is sensible, but it is only one part of the whole picture.

7. Practical takeaways

If you are trying to make sense of all the information about selenium benefits for skin, here are the key points:

Selenium is an essential mineral that supports antioxidant systems, the immune system and the thyroid. These roles give a clear biological basis for the link between selenium and skin health.[1][3]
Laboratory studies show that selenium can help skin cells handle UV damage and delay some signs of cellular ageing.[3]
Human studies suggest possible benefits of nutrient combinations, including selenium for skin with sun damage or mild acne, but selenium alone has not been shown to transform the skin.[6][8]
High-dose selenium trials in psoriasis and skin-cancer prevention have not shown clear benefits and raise safety concerns, reinforcing the message that “more” is not necessarily better for selenium and skin.[9][11]
In the UK, average dietary intakes may be a little below recommended levels, so some people benefit from paying attention to selenium-rich foods.[1][4]
Supplements can help in specific situations, but doses should stay within safe limits and be discussed with a healthcare professional.[1][4][10]

Overall, it is most accurate to see selenium benefits for skin as supportive rather than dramatic. The best results usually come when you combine healthy selenium levels – from food and, if needed, a suitable supplement – with everyday basics: sunscreen, not smoking, enough sleep, stress management and simple, gentle skincare.

When you look after all of these pieces together, selenium for skin becomes one small but useful part of a wider strategy to keep your skin comfortable, healthy-looking and resilient as you age.

References

British Nutrition Foundation
Selenium and Health
London (UK): British Nutrition Foundation; 2001. Accessed 8 Dec 2025.
British Dietetic Association
Skin health
Birmingham (UK): British Dietetic Association; 23 Feb 2022. Accessed 8 Dec 2025.
Jobeili L, Rousselle P, Béal D, Blouin E, Roussel AM, Damour O, Rachidi W
Selenium preserves keratinocyte stemness and delays senescence by maintaining epidermal adhesion
Aging (Albany NY). 2017;9(11):2302–2315. doi: 10.18632/aging.101322.
Scientific Advisory Committee on Nutrition (SACN)
SACN Statement on Selenium and Health
London (UK): SACN; 2013. Accessed 8 Dec 2025.
Cui Z, Xie R, Lu X, Schomburg L, Brenner H, Schöttker B
Associations of selenium status with all-cause and cause-specific mortality: a systematic review and meta-analysis of cohort studies
Redox Biol. 2025;85:103755. doi: 10.1016/j.redox.2025.103755.
Stephens TJ, Sigler ML, Hino PD, Le Moigne A, Dispensa L
A Randomized, Double-blind, Placebo-controlled Clinical Trial Evaluating an Oral Anti-aging Skin Care Supplement for Treating Photodamaged Skin
J Clin Aesthet Dermatol. 2016;9(4):25–32.
Lv J, Ai P, Lei S, Zhou F, Chen S, Zhang Y
Selenium levels and skin diseases: systematic review and meta-analysis
J Trace Elem Med Biol. 2020;62:126548. doi: 10.1016/j.jtemb.2020.126548.
Ablon G
A 12-week, Randomized, Double-blind, Placebo-controlled Study of the Safety and Efficacy of a Nutraceutical Supplement for Mild to Moderate Non-cystic Acne in Young Adults
J Clin Aesthet Dermatol. 2024;17(11):24–30.
Fairris GM, Lloyd B, Hinks L, Perkins PJ, Clayton BE
The effect of supplementation with selenium and vitamin E in psoriasis
Ann Clin Biochem. 1989;26(Pt 1):83–88. doi: 10.1177/000456328902600113.
National Institutes of Health, Office of Dietary Supplements
Selenium: Fact Sheet for Health Professionals
Bethesda (MD): NIH Office of Dietary Supplements; 4 Sept 2025. Accessed 8 Dec 2025.
Duffield-Lillico AJ, Slate EH, Reid ME, Turnbull BW, Wilkins PA, Combs GF Jr, et al.
Selenium supplementation and secondary prevention of nonmelanoma skin cancer in a randomized trial
J Natl Cancer Inst. 2003;95(19):1477–1481. doi: 10.1093/jnci/djg061.

Selenium Benefits for Skin: What Science Really Says About Glow and Ageing

1. How selenium works in your body and your skin