Sounds counterproductive, yes, but when you return to our causes of oily scalps, you know that washing over goes a long way. So often you hear people discussing how to "retrain their scalp" or "rebalance their hair," and usually that's what they do.
See, if you let your scalp live with its natural oils for a while, it stops signaling your pores that they have some extra work to do. Sure, this can make for an uncomfortable and greasy transition period, but most experts agree that anecdotal evidence suggests that it takes about a month to complete.
So how often should you wash yourself you ask? Well, that may take some guesswork on your part. So the most important thing is that you check-in diligently on your scalp. "Literally walk in there, part your hair in different places in your head, and look at your scalp: is it red? Are there flakes? Do you see oily clusters? Make it a habit," says Reslan. "The bottom line is that you just have to pay attention. People don't do that enough." A good rule is that if your hair is red and painful, it is a sign that it is time to rinse.