This is kind of a spinny from the how often do you shampoo thread. How many days/weeks can you go after washing or co-washing before your scalp starts to itch? Does your hair need to be washed while your scalp is ok, or vice versa? Do you have scalp issues (dandruff, eczema, etc.)?
When my scalp is in good condition I can go two weeks without washing. There are other times when it needs to be washed after only two or three days. I finally realized that sulfate shampoos irritate my scalp, which causes me to have to wash more frequently.
When my scalp is in good condition I can go two weeks without washing. There are other times when it needs to be washed after only two or three days. I finally realized that sulfate shampoos irritate my scalp, which causes me to have to wash more frequently.