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Dandruff is a common scalp condition causing flaking of the skin, often accompanied by itching. It's thought to be related to a mild inflammatory reaction to a yeast that naturally lives on the scalp, and can be worsened by dry skin, certain hair products, or stress.
Evidence checked against current NHS guidance on dandruff. Dandruff is common and usually manageable with anti-dandruff treatment; persistent or severe scalp symptoms may require assessment for conditions such as seborrhoeic dermatitis or psoriasis.
Public health education article
Consistent use of anti-dandruff shampoo matters more than frequency of washing — Using an anti-dandruff shampoo consistently as directed, rather than just washing hair more often, tends to control dandruff more effectively, since ordinary shampoo doesn't address the underlying cause.
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Dandruff is a common scalp condition causing flaking of the skin, often accompanied by itching. It's thought to be related to a mild inflammatory reaction to a yeast that naturally lives on the scalp, and can be worsened by dry skin, certain hair products, or stress.
Topic-specific prevention and risk reduction will be added during the article-specific evidence audit.
Dandruff doesn't improve with over-the-counter anti-dandruff shampoos
Dandruff is a common scalp condition causing flaking of the skin, often accompanied by itching. It's thought to be related to a mild inflammatory reaction to a yeast that naturally lives on the scalp, and can be worsened by dry skin, certain hair products, or stress.
It's not caused by poor hygiene and is not contagious. It usually responds well to specific anti-dandruff shampoos, which are widely available and effective for most people.
Using an anti-dandruff shampoo consistently as directed, rather than just washing hair more often, tends to control dandruff more effectively, since ordinary shampoo doesn't address the underlying cause.
Anti-dandruff shampoos often need a few weeks of consistent use to show full effect — switching too quickly between products can make it harder to tell what's actually working.
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BarnMD Health Library provides general health education for public health literacy. Reading this article does not establish a doctor-patient relationship and this information is not a diagnosis, prescription, or personalised treatment plan. If you have symptoms or concerns about your health, seek appropriate advice from a qualified healthcare professional. If you develop emergency warning signs, seek urgent or emergency medical attention.
Dandruff is common, not related to hygiene, and usually responds well to consistent use of an anti-dandruff shampoo.
Using a treatment shampoo consistently over several weeks, rather than switching products frequently, gives the best results.