Here’s how often should you wash your hair, according to a dermatologist

Many people wonder whether they’re washing their hair too often or not enough, and with all the mixed advice out there, it can be confusing. Dermatologists generally agree that most adults do well washing their hair **three to five times per week**, though the ideal routine varies depending on your scalp, lifestyle, and preferences. As we get older—especially past 60—changes in scalp sensitivity and hair texture can make the question feel even more complicated, but the basics remain simple.

Regular washing is really about scalp health. Cleansing removes excess oil, sweat, and product buildup, keeping the scalp comfortable and reducing odors or irritation. It also helps prevent the environment that allows bacteria or fungi to thrive. Dermatologists emphasize that shampooing more often does *not* cause your scalp to produce more oil—this is a common myth. What matters is matching your washing frequency to your own needs.

For many people, washing three to five times per week helps prevent oiliness, itching, and buildup. However, factors like sweating, climate, hair products, and scalp dryness can influence your ideal schedule. The key is to pay attention to how your scalp feels. If it’s tight, itchy, greasy, or uncomfortable, you may be waiting too long between washes.

Product choice also matters, especially as hair becomes finer or drier with age. Gentle or balancing shampoos work for most scalps; sulfate-free formulas can help if you’re sensitive. Conditioner is best applied from mid-length to ends to avoid weighing down the roots. A weekly hydrating mask can help if your hair feels dry or coarse.

Daily habits support scalp health too: use warm water instead of hot, massage gently with fingertips, rinse thoroughly, avoid heavy products on the scalp, and let hair dry fully before bed.

Ultimately, start with the three-to-five-day guideline and adjust based on comfort. Healthy hair care doesn’t require complicated routines—just consistent cleansing, gentle techniques, and listening to your scalp’s signals.