I think you should Press the Find button up on your left ! and seek nizoral.. you will be surprised with millions of informations about Nizoral in this forum.
With Shampoo I have used Nioxin for 5 years Shampoo and Conditioner daily. I also have used Nozoral once a week. It is OTC now and is good if you have dryness also to me helps circulation on the scalp.