All About Dandruff You Should Know

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Prevalence of Dandruff

Dandruff affects about half of the adult population. It usually peaks in severity around age 20 and becomes less prevalent above age 50. Approximately 1 to 3 percent of adults have seborrheic dermatitis, and it’s slightly more common in men than in women.

The incidence of seborrheic dermatitis peaks in three main age groups:

  • Infancy, especially under 3 months old
  • Puberty
  • Between ages 40 and 60

Is Dandruff Contagious?

Dandruff and seborrheic dermatitis aren’t contagious. Even if your skin is reacting to a fungus, the fungus is common. Researchers suspect that some people may react to Malassezia differently, for reasons that are currently unknown.

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