This treatment shampoo prevents dandruff from reoccurring with a calming effect. Specially formulated to treat even the most severe cases of dry or oily dandruff in record time. This shock treatment combines active, soothing and purifying ingredients to relieve serious scalp itchiness while effectively eliminating and preventing the reappearance of dandruff. Ideal for those suffering from eczema or psoriasis. How to use: Apply to wet hair. Rinse. Repeat and leave on for two minutes. 3.3 oz. By PHYTO.