The RedkenScalpReliefOilDetoxShampoo claims to purify the scalp while leaving the hair cleansed, light and airy. And this is what this shampoo does. Not more and not less. However it does not give me more time between washes and my hair is greasing as much as usual. Since this is a pricey item and it did not what I hoped for I might not purchase it again. Nevertheless my hair feels beautiful after washing it and there is no overwhelming scent to it which I really like.