They say that for perfect hair growth, scalp health is of paramount importance. Having said that, my scalp was feeling itchy and I was plagued with dandruff. My hairstylist advised me to purchase this product and I must say that just after one use, my scalp feels normal. I love the aromatherapeutic smell of tea-tree and the way that my scalp tingles when I use the shampoo. This is a deep cleansing treat as well and leaves my hair squeaky clean. I must stress that this shampoo should be used weekly to maintain the optimal condition of the scalp and to prevent dandruff. Love this tea-tree treat!