How often should you wash your hair?

Sebum, the natural oil produced by sebaceous glands in the scalp, plays a crucial role in hair health. It helps to protect and nourish the hair shaft by ways of reducing moisture loss, but excess sebum can lead to greasiness. Factors such as age, genetics, and hormonal fluctuations (including androgens) influence sebum production, making some individuals more prone to oily hair than others.

Different hair types distribute sebum differently:

• Fine hair: Sebum spreads quickly, making hair appear greasy faster.
• Thick or curly hair: Sebum takes longer to travel down the hair shaft, allowing for less frequent washing.
• Coarse or dry hair: Naturally produces less sebum, requiring less frequent washing.

External elements such as pollution, humidity, and sweat can accelerate oil buildup. Regular exercise and exposure to environmental pollutants may necessitate more frequent washing, while those in drier climates may find they can extend time between washes.

Frequent shampooing, especially with harsh sulfates, can strip the scalp of its natural oils, leading to:

• Increased sebum production as the scalp compensates for lost moisture.
• Dryness and irritation, particularly for sensitive scalps.
• Damage to the hair cuticle, resulting in frizz and breakage.

Dyson's intelligent heat control technology helps prevent excessive heat exposure, reducing the need for frequent washing by maintaining hair health and style longevity.

Everyone’s hair is different, and while the following recommendations offer a helpful starting point, the best routine is the one that works for you. Factors like lifestyle, climate, and personal preferences all play a role in shaping your ideal hair care approach—so use this guide as inspiration, and don’t be afraid to adjust based on what your hair truly needs.

• Wash frequency: Every 1–2 days.
• Recommended approach: Use lightweight, volumizing shampoos and avoid heavy conditioners at the roots.
• Dyson solution: Dyson Airwrap™ multi-styler and dryer with controlled airflow helps maintain volume without excessive heat after washes.

• Wash frequency: Every 4–7 days.
• Recommended approach: Opt for co-washing (using conditioner instead of shampoo) to maintain hydration.
• Dyson solution: Diffuser attachments on the Dyson Supersonic Nural™ hair dryer and Dyson Airwrap™ multi-styler and dryer enhance curl definition while reducing frizz.

• Wash frequency: Every 3–5 days.
• Recommended approach: Use hydrating shampoos and deep conditioning treatments.
• Dyson solution: A wide-tooth comb attachment to accompany your Dyson Supersonic™ hair dryer can potentially help to detangle and define curls with minimal heat exposure.

• Wash frequency: Every 3–5 days.
• Recommended approach: Use sulfate-free shampoos.
• Dyson solution: Consider reading Dyson’s dedicated color-treated guide.

To complement your wash day routine, consider pairing your shampoo with lightweight styling formulas, such as Dyson’s chitosan-based products, which help retain moisture, reduce frizz, and add hold—without the buildup that often leads to overwashing.

There’s no universal rule—only what works for you. Factors like scalp type, hair texture, activity level, and even the season can all influence how often you need to wash. For some, daily cleansing keeps oil in check; for others, a once-a-week routine preserves much-needed moisture.

By building a routine around your hair type—and using products and tools that support it—you can maintain healthier, more resilient strands. Dyson’s advanced hair care range, including intelligent styling tools and supportive styling products like their Chitosan-infused line, empowers you to style confidently while minimizing damage between washes.