Dermatologist Aanchal Panth: Why washing hair once a week is wrong; ideal routine.

• Washing hair only once a week is detrimental, causing oil buildup, dandruff, and skin issues, especially for teenagers.
• Dermatologists recommend adjusting hair wash frequency based on scalp type (oily: daily; normal: 2-3 times/week; dry: twice/week), weather, and routine.
• For dandruff, use anti-dandruff shampoo 2-3 times weekly; salicylic acid shampoo can help with excessive dead skin.
• General hair care tips include using mild shampoo, cool/lukewarm water, scalp massage, applying conditioner only to ends, and a healthy diet.

Why It Matters: Not washing hair enough harms scalp health; frequency depends on scalp type.