Vitamin D and Acne: Can Vitamin D Help Improve Your Skin?

Could low vitamin D be contributing to your acne?

Vitamin D is best known for supporting normal bones, muscles and immune function. Researchers have also explored whether vitamin D status may be relevant to inflammation and acne-prone skin.

If you live in the UK, spend most of your time indoors, avoid oily fish, cover most of your skin outdoors or have previously been told that your vitamin D level is low, it is understandable to wonder whether this nutrient could be affecting your skin.

The answer is not as simple as saying vitamin D cures acne.

Research suggests that people with acne may have lower vitamin D levels on average and that lower levels may be associated with more severe acne in some groups. However, an association does not prove that low vitamin D directly causes acne (Lim et al., 2016; Wang et al., 2021; Hasamoh et al., 2022).

Acne is rarely caused by one nutrient alone. Hormones, genetics, sebum production, inflammation, skincare, medication, stress, diet and other individual factors may all contribute.

This guide explains what vitamin D does, why it may be relevant to acne, what the research says, how to support your intake and why supplements should be used carefully.

What Is Vitamin D?

Vitamin D is a fat-soluble vitamin that has hormone-like actions within the body.

Your body can produce vitamin D when the skin is exposed to sunlight. Smaller amounts can also come from certain foods and supplements.

Vitamin D contributes to:

• Normal immune-system function
• Maintenance of normal bones and teeth
• Normal muscle function
• Normal blood calcium levels
• Normal cell division

Because acne involves immune activity and inflammation around the hair follicle, researchers have investigated whether vitamin D status may be relevant to inflammatory acne (Lim et al., 2016; Wang et al., 2021).

However, the role of vitamin D in acne remains an emerging area of research. It should not be assumed that everyone with acne has low vitamin D or that supplementation will clear the skin.

Why Might Vitamin D Be Relevant to Acne?

Researchers have proposed several reasons why vitamin D could be relevant to acne-prone skin.

What Does the Research Say About Vitamin D and Acne?

The research is interesting, but it is still developing.

A case-control study found that vitamin D deficiency was more common among participants with acne than among those without acne. In the same study, inflammatory lesions improved following vitamin D supplementation among participants who were deficient, although the study was relatively small (Lim et al., 2016).

A systematic review and meta-analysis also reported lower vitamin D levels among people with acne and suggested that supplementation may improve inflammatory lesions in some circumstances. However, the included studies varied in design, size and treatment approach (Wang et al., 2021).

Another meta-analysis found an association between lower vitamin D levels and acne severity. This supports further research, but it does not establish that vitamin D deficiency directly causes acne (Hasamoh et al., 2022).

A more recent study investigated vitamin D as an addition to topical benzoyl peroxide in mild-to-moderate acne. The findings suggested that supplementation may help reduce the relapse of inflammatory lesions, although further larger studies are needed before firm treatment recommendations can be made (Ruikchuchit et al., 2024).

Can Vitamin D Deficiency Cause Acne?

Low vitamin D has been associated with acne in several studies, but association does not prove direct causation.

This means that low vitamin D may be one relevant factor for some people, but it does not automatically mean deficiency is the reason their acne developed.

Acne may be influenced by:

• Hormonal changes
• Genetic susceptibility
• Sebum production
• Blocked hair follicles
• Inflammation
• Skincare products
• Medication
• Stress and sleep
• Dietary patterns
• Wider nutrient status

It is also possible that people with more severe acne spend less time outdoors or cover their skin more frequently, which could influence vitamin D status. Observational research cannot always determine which factor occurred first.

How to Increase Vitamin D Naturally

Sunlight is one of the main ways the body produces vitamin D. Food can also contribute, although relatively few foods naturally contain large amounts.

During autumn and winter in the UK, sunlight is generally not strong enough for most people to make sufficient vitamin D through the skin. This is why UK public-health guidance recommends considering supplementation during these months (NHS, 2025).

Should You Take Vitamin D Supplements for Acne?

Vitamin D supplementation may be appropriate where intake is limited, sun exposure is low or deficiency has been identified. However, supplements should not be taken solely on the assumption that they will clear acne.

The NHS advises that adults and children over the age of one should consider taking a daily supplement containing 10 micrograms of vitamin D during autumn and winter. Some people at higher risk of deficiency may be advised to take a supplement throughout the year (NHS, 2025).

People who may be advised to consider year-round supplementation include those who:

• Spend little time outdoors
• Are housebound
• Live in a care home
• Usually cover most of their skin outdoors
• Have dark skin, including people with African, African-Caribbean or South Asian backgrounds

The NHS advises against taking more than 100 micrograms of vitamin D per day unless advised by a healthcare professional, because excessive intake can cause calcium to build up in the body and may damage the kidneys, bones and heart (NHS, 2025).

Supplementation may require additional care if you:

• Already take vitamin D or a multivitamin
• Have been diagnosed with vitamin D deficiency
• Have kidney disease
• Have high blood calcium
• Have a condition affecting calcium regulation
• Take prescription medication
• Are pregnant or breastfeeding
• Have a condition that affects nutrient absorption

If you are unsure whether testing may be appropriate, you may find Are Functional Health Tests Worth It? helpful.

Vitamin D and Hormonal Acne

Vitamin D may be relevant to someone with hormone-related acne if their vitamin D intake or status is low. However, vitamin D supplementation should not be assumed to correct an underlying hormonal imbalance.

Hormonal acne may be influenced by:

• Androgen activity
• Menstrual-cycle changes
• PCOS
• Blood sugar regulation
• Stress
• Sleep
• Genetics
• Skincare and medication

If your acne appears around the jawline or chin or worsens before your period, read Foods for Hormonal Acne.

If acne appears alongside irregular periods, excess facial or body hair or thinning scalp hair, read Acne and PCOS.

Could Gut Health Affect Vitamin D Status?

Vitamin D is fat-soluble, so its absorption depends partly on the normal digestion and absorption of dietary fat.

Certain diagnosed digestive conditions that affect fat absorption may increase the risk of low vitamin D. However, common symptoms such as bloating, constipation or reflux do not automatically mean vitamin D is being poorly absorbed.

Persistent diarrhoea, unexplained weight loss, pale or greasy stools and other ongoing digestive symptoms should be discussed with a GP rather than assumed to be a food intolerance or microbiome imbalance.

You can read more about the wider connection between digestion and skin in Can Gut Health Cause Acne? and The Gut-Skin Axis.

Vitamin D Is Only One Piece of the Acne Puzzle

Vitamin D is important for health, but acne is rarely explained by one deficiency.

For some people, low vitamin D may be relevant. For others, more important contributors may include hormones, genetics, stress, sleep, skincare, medication, diet or another health condition.

Two people with similar acne can therefore respond very differently to the same supplement.

You may also find these guides useful:

• Is Zinc Good for Acne?
• Foods That May Trigger Acne
• How to Get Rid of Acne
• Acne Treatments and Skincare

When to Speak to Your GP

Speak to your GP, pharmacist or another appropriate healthcare professional if you are concerned about vitamin D deficiency or are considering a dose above standard public-health guidance.

Medical advice may be particularly important if you:

• Have previously been diagnosed with vitamin D deficiency
• Experience unexplained muscle weakness or bone pain
• Have a digestive condition that may affect absorption
• Have kidney disease or problems with calcium regulation
• Take medication that may interact with supplements
• Are pregnant or breastfeeding and are unsure which supplement is appropriate
• Have painful, nodular, cystic or scarring acne
• Are experiencing a significant effect on your confidence or emotional wellbeing

What This Means for You

Vitamin D may be worth considering if you have acne and also have limited sunlight exposure, a low intake of vitamin D-containing foods, darker skin, a condition that affects absorption or a previous history of deficiency.

However, the question is not simply:

Should I take vitamin D for acne?

The more useful question is:

Is low vitamin D one of the factors that may be relevant to my overall health and skin?

Begin by reviewing your diet, lifestyle, current supplements and risk factors. Testing or personalised guidance may be appropriate where deficiency is suspected.

Frequently Asked Questions

Final Thoughts

Vitamin D supports normal immune function and wider health. Research suggests that people with acne may have lower vitamin D levels on average and that supplementation may support some individuals with inflammatory acne where deficiency exists (Lim et al., 2016; Wang et al., 2021; Hasamoh et al., 2022).

However, vitamin D is not a cure for acne, and low levels should not be assumed to be the cause of every breakout.

The most balanced approach is to consider vitamin D alongside the wider acne picture, including hormones, genetics, skincare, stress, sleep, diet, medication and overall health.

Supplementation should follow safe public-health guidance or personalised professional advice, particularly when higher doses or long-term use are being considered.