How often should you wash your hair each week?

It’s a question many people ask themselves: should you wash your hair every day or, on the contrary, try to space out shampoos as much as possible? In reality, there is no universal rule. The ideal frequency depends on many factors, including your hair type, scalp condition, physical activity, and even your environment.

Sebum: an essential ally for your hair

Your scalp naturally produces sebum, a lipid rich substance that plays a protective role. It forms a hydrolipidic film that helps shield both the hair and scalp from external aggressors while contributing to their natural hydration.

The purpose of shampoo is to remove excess sebum, impurities, pollution particles, and styling product residue. However, when used too frequently or with overly harsh formulas, it can disrupt the scalp’s natural balance.

Can you space out shampoos indefinitely?

While excessive washing is not always recommended, waiting too long between shampoos may not be beneficial either.

Over time, sebum, dust, pollution particles, dead skin cells, and product residue accumulate on the scalp’s surface. This buildup can lead to itching, irritation, redness, and even dandruff.

Several studies have found that infrequent washing may encourage the growth of Malassezia, a fungus naturally present on the scalp. When it proliferates excessively, it can contribute to itching, dandruff, and scalp inflammation. Researchers have also observed that increasing shampoo frequency can help reduce redness, flaking, itching, and inflammatory markers.

The best frequency? The one that suits your scalp

To date, there is no precise scientific recommendation stating that you should wash your hair two, three, or five times a week.

Your scalp remains the best indicator. If your roots become oily, if you experience itching, or if your scalp feels uncomfortable, it is probably time for a wash.

Curly, coily, and kinky hair can generally be washed less frequently, as it naturally tends to be drier. On the other hand, oily scalps may require more regular shampooing.

Choosing a sulfate free and silicone free shampoo that respects your scalp

More than frequency, it is often the choice of shampoo that makes the biggest difference.

Cair Shampoo by La Bonne Brosse, free from sulfates and silicones, effectively cleanses the scalp while respecting its natural balance. Its gentle formula removes impurities and excess sebum without damaging the hair fiber or drying out the scalp.

The result: cleaner hair for longer, a comfortable scalp, and hair that feels light and looks shiny.

Space out shampoos with the Freshening & volumizing hair mist

For those who want to extend that fresh feeling between washes, the Freshening & volumizing hair mist is the perfect solution.

This lightweight hair mist is applied directly to the scalp to help restore comfort and balance on a daily basis. It refreshes the roots, helps reduce feelings of discomfort, and allows you to gradually extend the time between shampoos without compromising scalp health.

Restore long term scalp balance with the Cair Fortifying Hair Serum

To address scalp health at its source and care for your scalp as you would your skin, the Cair Fortifying Hair Serum by La Bonne Brosse is the perfect addition to your haircare routine.

Rich in skincare inspired active ingredients and prebiotics, this alcohol free scalp serum helps boost scalp vitality while respecting its microbiome. It helps rebalance the scalp ecosystem, supports an environment conducive to stronger hair, and contributes to restoring shine and overall hair health.

Used regularly, it helps maintain a healthy scalp, the essential first step toward beautiful, healthy looking hair.