How often you really need to wash your hair depends on various factors. Depending on your skin type, washing is tolerated better or worse.
People with oily skin and therefore oily hair can wash their hair more often, but there should not be less than two days between washes. It is also important to rinse the shampoo thoroughly, as cosmetic residues can irritate the scalp. And also to keep an eye on the lime content and temperature of the water. Because very calcareous and hot water also dries out the hair and scalp. Water that is too hot stresses the hair as it opens the cuticle layer. However, you can counteract this by rinsing them again with cold water at the end of the wash, says professional hairdresser Dennis Creuzberg in a press release. For some people, washing their hair is part of their daily routine, but it is usually not necessary. How washing too often affects your scalp and hair and how often you should actually wash it.