I actually went in to a salon meaning to buy Moroccanoil's clarifying shampoo but it was not available, so I purchased this instead. This shampoo has a lovely, lovely smell and is truly great at removing build up. I use it generally once a week for the 5-10 minutes or whenever my hair is feeling weighed down. This product is not about removing dandruff but as it says, styling build-up. This is quite an expensive shampoo but as you are only using one-two times a week it takes awhile to get through the 300 ml and leaves your hair feeling light & refreshed. I would buy again, who needs the Moroccanoil version? :p