Nizoral Anti-Dandruff Shampoo seems to be a very good product. I noticed a difference the first time I used it -- there was no residue on my scalp, and my flakiness was greatly reduced. It produced a very rich lather, also. The only thing I didn't like about it was the possibility that I'd have an allergic reaction to the ingredients, but the instructions didn't tell which ingredients might make this happen. I, myself, am sensitive to many products, and didn't have any reaction to the ingredients of the shampoo. I would recommend this product to others.