Dandruff: CMA Clinical Spotlight by Dr Amrita Singh

Dandruff is so common that it is easy to dismiss as a cosmetic nuisance. Yet clients raise it with practitioners all the time, it can be persistent and distressing, and it sometimes overlaps with – or masks – other scalp conditions that need medical attention. In this Clinical Spotlight, we look at what dandruff is, why it happens, how it presents, and how it can be supported from conventional, nutritional, psychological and homeopathic perspectives.

What is dandruff?

Dandruff is a common scalp condition that causes white or grey flakes of skin to appear on the scalp and in the hair. These flakes may fall onto the shoulders and can sometimes be associated with itching, dryness or mild scalp irritation (NHS, 2017; Mayo Clinic, 2016).

Dandruff is not dangerous and is not contagious. It does not usually mean poor hygiene, although flakes may become more noticeable if the scalp is not washed regularly or if oil and skin cells build up (NHS, 2017; American Academy of Dermatology Association, 2023).

Dandruff may be linked with dry skin, an oily scalp, sensitivity to hair products, or seborrhoeic dermatitis – a common inflammatory skin condition that can affect oily areas of the body such as the scalp, face, eyebrows, ears and chest (Mayo Clinic, 2016; Cleveland Clinic, 2025).

A yeast-like fungus called Malassezia, which naturally lives on the scalp, may also contribute to dandruff in some people. When the scalp reacts to this organism or becomes irritated, skin cells may shed more quickly, leading to visible flakes and itching (Mayo Clinic, 2016; American Academy of Dermatology Association, 2023).

Dandruff is usually manageable with appropriate scalp care and anti-dandruff shampoos. However, if symptoms are severe, persistent or painful, are associated with redness, swelling, crusting or hair loss, or do not improve with self-care, medical assessment may be needed to rule out other scalp conditions such as psoriasis, eczema, fungal infection or severe seborrhoeic dermatitis (NHS, 2017; Mayo Clinic, 2016).

Causes

Dandruff can occur when the scalp sheds skin cells more quickly than usual, leading to visible white or grey flakes. It is often linked with a combination of scalp oil production, irritation, sensitivity and changes in the natural organisms living on the scalp (NHS, 2017; Mayo Clinic, 2016).

One common contributing factor is seborrhoeic dermatitis, an inflammatory skin condition that affects oily areas of the body, especially the scalp. It may cause flaking, itching, redness, and greasy or yellowish scales. Dandruff may be considered a mild form of seborrhoeic dermatitis when it mainly affects the scalp (Cleveland Clinic, 2025; Mayo Clinic, 2016).

Malassezia may also contribute. Although it lives naturally on the scalp, in some people it may irritate the skin or trigger faster shedding of skin cells, leading to flakes and itching (Mayo Clinic, 2016; American Academy of Dermatology Association, 2023).

Dry skin can also cause flaking. This type of dandruff may be more noticeable in cold weather, in dry environments, or when the scalp becomes dehydrated or irritated. The flakes tend to be smaller and drier than those linked to an oily scalp (Mayo Clinic, 2016; NHS, 2017).

Some people develop dandruff because of sensitivity to hair products such as shampoos, conditioners, styling products, dyes or fragranced products. These may irritate the scalp or trigger contact dermatitis, causing itching, redness, dryness and flaking (Mayo Clinic, 2016; NHS, 2017).

Dandruff may also be worsened by infrequent hair washing, as oil and dead skin cells can build up on the scalp. However, dandruff is not caused by poor hygiene, and excessive washing or harsh shampoos may also irritate the scalp in some people (NHS, 2017; American Academy of Dermatology Association, 2023).

Signs and symptoms

The main sign of dandruff is the presence of white or grey flakes of skin on the scalp, hair or shoulders. These flakes may be dry and powdery or slightly oily, depending on the underlying scalp condition (NHS, 2017; Mayo Clinic, 2016).

Dandruff may also cause scalp itching, which can range from mild to more troublesome. Some people notice that the scalp feels dry, tight, sensitive or mildly uncomfortable, especially during colder weather or after using certain hair products (Mayo Clinic, 2016; American Academy of Dermatology Association, 2023).

Where dandruff is linked with seborrhoeic dermatitis, the scalp may appear red, oily or irritated, or be covered with greasy-looking scales. Flaking may also occur around the eyebrows, the sides of the nose, the ears, the beard area or the chest (Cleveland Clinic, 2025; Mayo Clinic, 2016).

Symptoms may become worse during periods of stress, in cold or dry weather, with oily scalp build-up or infrequent washing, or with sensitivity to hair products. Some people experience recurrent flare-ups rather than constant symptoms (NHS, 2017; Mayo Clinic, 2016).

Dandruff is usually mild, but medical advice may be needed if there is severe itching, marked redness, swelling, crusting, bleeding, pain, hair loss, signs of infection, or symptoms that do not improve with regular use of an anti-dandruff shampoo (NHS, 2017; American Academy of Dermatology Association, 2023).

Types and classifications

Dandruff is not usually divided into formal stages, but it may be classified according to the scalp pattern, the underlying cause, its severity, and whether it is linked with another skin condition (NHS, 2017; Mayo Clinic, 2016).

1. Dry scalp dandruff

This type is associated with a dry or sensitive scalp. The flakes may appear small, white, dry and powdery. It may be worse in cold weather, in dry environments, or after using harsh shampoos or hair products (Mayo Clinic, 2016; NHS, 2017).

2. Oily scalp dandruff

Some people develop dandruff because of excess oil on the scalp. The flakes may appear larger and greasier, or be more firmly stuck to the scalp and hair. Oil build-up may also encourage irritation and visible flaking (American Academy of Dermatology Association, 2023; Mayo Clinic, 2016).

3. Seborrhoeic dermatitis-related dandruff

Here the scalp may become red, itchy and oily, and covered with greasy scales. It can also affect areas such as the eyebrows, the sides of the nose, the ears, the beard area and the chest (Cleveland Clinic, 2025; Mayo Clinic, 2016).

4. Product-related or irritant dandruff

Some people experience flaking because of sensitivity or irritation from shampoos, conditioners, hair dyes, styling products, fragrances or harsh scalp treatments. This may be associated with itching, redness, dryness or contact dermatitis (NHS, 2017; Mayo Clinic, 2016).

5. Mild dandruff

Mild dandruff may involve occasional flakes and mild itching, often manageable with regular scalp care and a suitable anti-dandruff shampoo (NHS, 2017; American Academy of Dermatology Association, 2023).

6. Moderate to severe dandruff

More persistent dandruff may involve frequent flaking, stronger itching, redness, greasy scaling, irritation or recurrent flare-ups. If symptoms are severe, painful, crusted or bleeding, are associated with hair loss, or are not improving with treatment, medical assessment may be needed to rule out psoriasis, eczema, fungal infection or more significant seborrhoeic dermatitis (NHS, 2017; Mayo Clinic, 2016).

Risk factors

Several factors may increase the likelihood of developing dandruff, although it can affect people of any age. The condition often results from a combination of scalp oil production, skin sensitivity, environmental influences and individual susceptibility, rather than a single cause (NHS, 2017; Mayo Clinic, 2016).

• Oily scalp. One of the most common risk factors. Excess sebum can encourage overgrowth of Malassezia, which may contribute to increased skin cell turnover and flaking (Mayo Clinic, 2016; Cleveland Clinic, 2025).
• Dry skin. People with naturally dry skin, or those exposed to cold weather, low humidity or frequent use of harsh shampoos, may develop small, dry scalp flakes (NHS, 2017; Mayo Clinic, 2016).
• Skin conditions. Seborrhoeic dermatitis in particular is strongly associated with dandruff. Other skin disorders affecting the scalp, such as eczema or psoriasis, may produce similar flaking and require medical assessment (Cleveland Clinic, 2025; NHS, 2017).
• Product sensitivity. Shampoos, conditioners, hair dyes, styling products or fragranced scalp products may increase scalp irritation and flaking in some individuals (Mayo Clinic, 2016; NHS, 2017).
• Stress. Emotional stress does not directly cause dandruff, but it may worsen underlying scalp inflammation or seborrhoeic dermatitis in susceptible individuals and make existing dandruff more noticeable (Mayo Clinic, 2016; American Academy of Dermatology Association, 2023).
• Other factors. These include infrequent hair washing, hormonal influences, age (dandruff often begins in adolescence and early adulthood), neurological conditions such as Parkinson’s disease, and a weakened immune system, where seborrhoeic dermatitis may be more common (Mayo Clinic, 2016; Cleveland Clinic, 2025).

Complications

Dandruff is usually not serious or dangerous, but it can become troublesome when symptoms are persistent, recurrent or itchy, or are associated with an underlying scalp condition such as seborrhoeic dermatitis (NHS, 2017; Mayo Clinic, 2016).

One common complication is persistent itching and scalp irritation. Repeated scratching may make the scalp more sensitive and can sometimes lead to redness, soreness, small breaks in the skin, or discomfort (NHS, 2017; American Academy of Dermatology Association, 2023).

Visible flakes on the hair, scalp, clothing or shoulders can also affect confidence and social comfort. Some people feel embarrassed or self-conscious, especially if flakes are noticeable in public or at work.

If dandruff is related to seborrhoeic dermatitis, symptoms may extend beyond the scalp to oily areas such as the eyebrows, the sides of the nose, the ears, the beard area or the chest, causing redness, greasy scales, itching and recurrent flare-ups (Cleveland Clinic, 2025; Mayo Clinic, 2016).

Another possible complication is misdiagnosis, or delayed treatment of other scalp conditions. Psoriasis, eczema, fungal infection, allergic contact dermatitis or scalp infection may resemble dandruff but require different management. Severe itching, pain, crusting, bleeding, swelling, hair loss, or symptoms that do not improve with anti-dandruff shampoo should be assessed medically (NHS, 2017; Mayo Clinic, 2016).

Some people also overuse harsh shampoos, oils or scalp treatments in an attempt to control flakes, which can worsen dryness, irritation or product sensitivity.

Prognosis

The prognosis for dandruff is generally very good. It is a common and usually harmless scalp condition that can often be managed with regular scalp care and suitable anti-dandruff shampoos (NHS, 2017; American Academy of Dermatology Association, 2023).

Many people notice improvement with shampoos containing antifungal, anti-inflammatory or keratolytic ingredients, chosen according to the scalp pattern and severity. However, dandruff may return if treatment is stopped too soon or if the underlying tendency remains (Mayo Clinic, 2016; NHS, 2017).

For some people, dandruff is recurrent or long-term, especially when it is linked with seborrhoeic dermatitis, an oily scalp, stress, cold weather, product sensitivity or individual susceptibility. In these cases, ongoing maintenance care may be needed to keep symptoms under control (Cleveland Clinic, 2025; Mayo Clinic, 2016).

The outlook is usually better when triggers are identified and managed. This may include avoiding harsh or irritating hair products, washing the scalp regularly according to hair type, managing stress, and using medicated shampoos correctly.

Persistent or severe symptoms should be reviewed if there is marked redness, swelling, crusting, bleeding, pain, hair loss, or no improvement with treatment. These features may suggest another condition such as psoriasis, eczema, fungal infection, contact dermatitis or more severe seborrhoeic dermatitis (NHS, 2017; Mayo Clinic, 2016).

Nutritional perspective

Nutrition may play a supportive role in dandruff management by helping to support skin health, immune balance, scalp barrier function and general wellbeing. However, dandruff is mainly related to scalp flaking, oil production, Malassezia sensitivity, seborrhoeic dermatitis, dry skin or product irritation, so diet should be seen as supportive rather than as a direct cure (NHS, 2017; Mayo Clinic, 2016).

A balanced diet rich in vegetables, fruits, whole grains, pulses, nuts, seeds and adequate protein may support healthy skin renewal and tissue repair. Protein is important for skin and hair structure, while vitamins and minerals contribute to normal scalp function and healing.

Nutrients such as zinc, B vitamins, vitamin D, vitamin A, vitamin E, omega-3 fatty acids and antioxidants may support general skin and immune health. Food sources include lentils, beans, nuts, seeds, leafy greens, colourful vegetables, whole grains, eggs, dairy products and oily fish.

Hydration is also important for overall skin and scalp comfort. In people with a dry scalp, inadequate fluid intake, harsh hair products or dry weather may contribute to scalp tightness and flaking, so hydration and gentle scalp care may be helpful.

For some individuals, excess sugar, alcohol, highly processed foods and saturated fats may worsen general inflammation or skin imbalance, although dietary triggers vary from person to person. Keeping a simple food, stress and symptom diary may help identify whether flare-ups are linked with particular lifestyle patterns.

Psychological perspective

Dandruff can have a noticeable psychological and emotional impact, especially when flakes are visible on the scalp, hair, clothing or shoulders. Although it is usually harmless, it may cause embarrassment, self-consciousness, reduced confidence and social discomfort (NHS, 2017; Mayo Clinic, 2016).

People with recurrent dandruff may feel anxious about their appearance, particularly in work, school, social or intimate settings. Visible flakes may lead to worry about being judged as unhygienic, even though dandruff is not caused by poor hygiene and is not contagious (NHS, 2017; American Academy of Dermatology Association, 2023).

Persistent itching may also affect emotional wellbeing. Ongoing scalp discomfort can be distracting and frustrating, especially if symptoms flare repeatedly or do not respond quickly to treatment, and scratching in public may increase embarrassment.

If dandruff is linked with seborrhoeic dermatitis, symptoms may also appear on visible areas such as the eyebrows, the sides of the nose, the ears, the beard area or the chest. This may increase body-image concerns, low mood or avoidance of social situations (Cleveland Clinic, 2025; Mayo Clinic, 2016).

Psychological support may include reassurance, education, reducing stigma, encouraging realistic expectations and supporting confidence, helping the person understand that dandruff is common and manageable. It may also help to discuss stress, as stress can worsen flare-ups in some individuals.

Homeopathic perspective

From a homeopathic perspective, dandruff may be approached by considering the person’s complete scalp pattern, skin tendency, general health, lifestyle and emotional wellbeing, rather than focusing only on visible flakes.

Homeopathic assessment is highly individualised. Attention may be given to whether the flakes are dry, white and powdery, or oily, greasy and yellowish; whether they are itchy or recurrent; and whether they are associated with redness and irritation. The practitioner may also consider whether symptoms are worse in cold weather, during stress, after using certain hair products, with infrequent washing, or with an oily or sensitive scalp.

The wider constitutional picture may also be explored, including skin sensitivity, any tendency to eczema or seborrhoeic dermatitis, digestion, sleep, stress levels, hormonal influences, confidence and self-image. This matters because dandruff can be recurrent and may affect both scalp comfort and emotional wellbeing.

Supportive homeopathic care may focus on scalp comfort, skin balance, itching, the tendency to recur, confidence and overall wellbeing. It may be considered alongside gentle scalp care, suitable anti-dandruff shampoos, avoidance of harsh or perfumed hair products, stress management and nutritional support.

Severe itching, marked redness, swelling, crusting, bleeding, pain, hair loss, or symptoms that do not improve with appropriate scalp care should be medically assessed to rule out conditions such as psoriasis, eczema, fungal infection, contact dermatitis or more severe seborrhoeic dermatitis.

Summary

Dandruff is a common, usually harmless and non-contagious scalp condition that causes white or grey flakes on the scalp, hair or shoulders, sometimes with itching, dryness, irritation or sensitivity. It may be linked with dry skin, an oily scalp, Malassezia sensitivity, seborrhoeic dermatitis, infrequent scalp cleansing or irritation from hair products. It is not caused by poor hygiene, although flakes may become more noticeable when oil and dead skin cells build up.

Risk factors include an oily scalp, dry skin, seborrhoeic dermatitis, sensitivity to hair products, stress, infrequent washing, hormonal influences, neurological conditions and reduced immune function. Complications may include persistent itching, irritation, redness, embarrassment, reduced confidence, recurrent flare-ups, and confusion with other scalp conditions.

The prognosis is generally very good. Most cases can be managed with regular scalp care and suitable anti-dandruff shampoos, although recurrence is common. A comprehensive approach includes gentle scalp hygiene, avoiding irritating products, stress management, nutritional support, psychological reassurance, and medical review if symptoms are severe, painful, crusted or bleeding, are associated with hair loss, or are not improving with treatment.

If you are looking for support from a qualified complementary practitioner, you can find a CMA registered practitioner on The Complementary Medical Association website.

References

American Academy of Dermatology Association. (2023). How to treat dandruff. https://www.aad.org/public/everyday-care/hair-scalp-care/scalp/treat-dandruff

Cleveland Clinic. (2025). Seborrheic dermatitis: Symptoms, causes & treatment. https://my.clevelandclinic.org/health/diseases/14403-seborrheic-dermatitis

Mayo Clinic. (2016). Dandruff – Symptoms and causes. https://www.mayoclinic.org/diseases-conditions/dandruff/symptoms-causes/syc-20353850

NHS. (2017, 18 October). Dandruff. https://www.nhs.uk/conditions/dandruff/

further reading: You can read about a wide variety of other Conditions Here on the Complementary Medical Association’s “Learn About” pages.

About the Author

Amrita Singh is a qualified Homoeopath, Psychologist and Nutritionist with a multidisciplinary background in psychological wellbeing, nutrition and complementary healthcare. She holds an MSc in Psychology (UK) and an MSc in Food, Nutrition & Dietetics (India), alongside formal training in classical homoeopathy from the Central College of Homoeopathy, London. She is currently pursuing postgraduate studies with the Irish School of Homoeopathy.

A Full Member of The Complementary Medical Association (MCMA) and Homoeopathy International (R. Hom. Int.), a Graduate Member of the British Psychological Society, and insured through Balens, Amrita brings together psychological understanding, nutritional support and individualised homoeopathic care within a whole-person approach.

Formerly Head of Department at RMCH&RC, she now works with clients internationally and runs two physical clinics in Meerut City, Uttar Pradesh, and Ambala Cantt., Haryana, India. Her work is centred on compassionate, person-centred care that recognises the interconnected roles of emotional wellbeing, physical health, nutrition and lifestyle.

Amrita Singh
Homoeopath, Psychologist & Nutritionist
Lic; ISH Advanced Homeopathic Therapeutics (Ireland) | Level 7 Psychology (England) | MSc Food, Nutrition & Dietetics (India)
MCMA | R. Hom. Int. (Balens Insured) | GMBPsS

Email: [email protected]
Website: amritasingh.co.uk
Instagram: @best_doctor.uk2025
Facebook: Amrita Singh

This article is for educational purposes and does not replace individual medical advice. Anyone with severe, persistent or worsening scalp symptoms should seek assessment from a qualified medical professional.