In fact, washing your hair every day can do more harm than good. Dermatologist and director of Boston Medical Centre’s hair clinic, Lynne Goldberg, confirmed this in an interview with Business Insider. She said: “It’s paradoxical, but people who wash their hair a lot to get rid of oil are drying out their scalp and producing more oil.”
There are certain factors to keep in mind when you are trying to determine how often you should wash your hair. Here are three important factors:
1. Skin type
If your skin and hair are anywhere from normal (not super oily and not super dry) to dry, you probably only need to wash it once a week, according to a Columbia University health column. If you have a greasy scalp, you probably need to wash your hair more often.
2. Hair texture
Hair texture matters because it affects how quickly your scalp produces oil. Coarse or curly hair slows down the spread of sebum (oil produced from your scalp), so if you have this type of hair you may only need to shampoo once a week, say the experts at Columbia.
On the other hand, people with fine, straight hair will likely need to shampoo twice a week.
3. Styling
Another thing to consider is the way you style and treat your hair. If your hair is damaged by hair products or certain activities you put your hair through, you should wash it less frequently.
How about how often should you wash your armpit?