You should generally use a clarifying shampoo once or twice a month to remove product buildup, excess oils, and impurities from your hair and scalp. This frequency suits most people who wash their hair regularly but do not use heavy styling products or have hard water issues

. However, the ideal frequency depends on your hair type and lifestyle:

• Weekly use is recommended if you use a lot of styling products, have an oily scalp, sweat heavily, or are exposed to hard water or chlorine (such as swimmers) to prevent buildup and discoloration

• Every 2 to 4 weeks is better for those with dry or damaged hair to avoid over-stripping natural oils and causing dryness

• Some suggest using clarifying shampoo every 4-5 washes as a balance for curly hair types to reset curls without over-cleansing

Be cautious not to overuse clarifying shampoos because they can strip essential oils and cause dryness or damage. Also, avoid using clarifying shampoos for at least 4-6 weeks after coloring your hair to prevent color fading

. In summary:

• Typical use: 1-2 times per month
• Weekly if heavy product use, hard water, or swimming
• Less frequently (every 2-4 weeks) if hair is dry or fragile
• Always follow with a hydrating conditioner or treatment to restore moisture

Adjust based on how your hair feels and looks, and consult a stylist if unsure. Signs you need clarifying shampoo include greasy, heavy, or dull hair, scalp itchiness, or difficulty styling