So Pure Renewing by Keune for treatment of dandruff is a very gentle and natural conditioning treatment against dandruff. A unique and innovative composition with a foundation of Birch and Patchouli oils; offers an effective treatment against dandruff and an irritated scalp. So Pure Renewing treatment is only pure and natural. Essential oils of Birch and Patchouli have a strong calming effect and offer great sense of care and relaxation. The hair is refreshed, shines and is in optimum condition.