Understanding Dandruff: Causes, Treatment, and Prevention
Dandruff is a common, harmless scalp condition that causes white flakes to appear in the hair or on the shoulders. It often begins between ages 10 and 20 and affects up to 40% of adults over 30. While not dangerous, it can be uncomfortable or embarrassing.
Dandruff occurs when the scalp sheds skin cells faster than normal, often due to dry or oily scalp, sensitivity to hair products, skin conditions like eczema or seborrheic dermatitis, or an overgrowth of a yeast-like fungus. Factors such as stress, hormones, excess scalp oil, or immune issues can worsen the condition.
Managing dandruff usually starts with regular shampooing to remove flakes and reduce oil. If standard shampoos aren’t enough, over-the-counter antidandruff shampoos containing ingredients like ketoconazole, selenium sulfide, salicylic acid, sulfur, coal tar, or zinc pyrithione can help. Frequency and usage depend on the product.
For infants with cradle cap, gentle care with mineral oil and mild shampoo is usually sufficient, as the condition often resolves within the first year.
To prevent and control dandruff, maintain a healthy scalp by shampooing regularly, reducing stress, limiting hair products, and eating a balanced diet. Persistent or worsening cases may require a doctor’s evaluation and prescription treatments.
