How many times should you shampoo your hair in a week?

Shampoo frequency depends on hair type, lifestyle, and preference. Oily, fine, and normal hair need frequent washing; dry, curly, coily hair benefit from sulfate-free shampoos. More washing is needed for active lifestyles, pollutant exposure, and product usage. Hydration through conditioning, deep treatments, seasonal adjustments, clarifying shampoos, and maintaining scalp health are crucial.