It is effective in treatment of dandruff and oily skins. During bath, apply Tarexin Tar Shampoo to your scalp and wash with water after waiting 2-3 minutes. Use 2-3 times in a week and don't use other type of shampoos/soaps while using Tarexin Tar Shampoo. Does not include coloring substances or synthetic preservatives. It is hypoallergenic and does not cause skin irritations or allergies.