I cannot have shea butter on my scalp or I get itchy. I can use it for a rinse out conditioner, deep conditioner, or as a leave-in on the length of my hair. It irritates my scalp if left in too long. It took me a while to figure this out. Also, be very careful of product build-up. I agree with those recommending an apple cider vinegar rinse to tone the scalp. I conditioner wash in between shampoos, but my scalp needs a good thorough cleansing weekly with a non-sulfate shampoo to be completely happy.
violently happy