How Often Should You Wash Your Hair?
Oily Scalp
If your scalp becomes oily quickly, washing daily or every other day may be appropriate.
Normal Scalp
For many people, washing every 2–3 days works well.
Dry or Curly Hair
You may need to wash less often, such as once a week or as needed, because frequent washing can increase dryness.
If You Have Dandruff
Regular washing, often with an anti-dandruff shampoo, can help control flakes and scalp oil.
The Bottom Line
There is no single number of days that works for everyone. A dermatologist generally recommends adjusting your washing routine according to your scalp’s oiliness, hair type, and scalp condition.
