One of the most hotly debated topics in hair care is the frequency of washing. While some people make a habit of showering daily, others advocate for washing once a week. However, according to dermatologists, this varies from person to person. Factors such as hair type, oil content, age, and lifestyle directly influence the intervals between washes.
Here are all the details, based on expert opinions, on when and how you should wash your hair.
Dermatologist Dr. Anthony Rossi sheds light on a common misconception that many people hold: the belief that if they don't wash their hair daily, it will become greasy. However, according to Rossi, this is generally not the case. Those accustomed to regular washing might notice that their scalps don't actually produce as much oil as they thought when they extend the intervals between washes.
However, this doesn't hold true for everyone. There are individuals whose scalps may produce excessive oil, necessitating daily washing. Particularly during adolescence, a surge in hormones can activate the oil glands, leading to faster hair greasing. As one ages, the scalp tends to produce less oil, hence the frequency of washing can be reduced.
Dr. Rossi generally recommends washing your hair once or twice a week. However, this frequency can vary depending on the nature of your hair. For instance, hair that has been dyed, permed, or straightened tends to be more fragile. Therefore, washing it more than once a week can lead to dryness and even breakage.
The situation differs for curly or thick-haired individuals. Given that this type of hair is naturally drier, frequent washing can disrupt its moisture balance. According to the American Academy of Dermatology, those with curly hair should wash it every two to three weeks. On the other hand, as oil builds up more quickly in straight and fine hair, washing it several times a week would be ideal.
According to experts, massaging the scalp between washes is highly beneficial for removing dead cells and boosting blood circulation. Dr. Rossi emphasizes the importance of keeping the hair roots moist. To achieve this, one can use leave-in conditioners or natural oils.
For those who exercise or sweat frequently, it's not necessary to use shampoo with every shower. Rinsing with water or simply moisturizing the scalp can suffice. Moreover, while dry shampoos may be suitable for emergencies, they should not be used frequently in the long run due to their potential for buildup.