The One Purple Conditioner can be used on color treated or naturally blonde hair. It is great for toning and also sulfate-free. It is good for all hair types. Design house: Kristin Ess. Series: The One Purple Conditioner. Gender: Unisex. Category: Hair Care. SubType: Shampoos & Conditioners. Beauty group: Hair. Size: 10 oz. Barcode: 840797112209. The One Purple Conditioner by Kristin Ess for Unisex - 10 oz Conditioner. This item is only valid for shipment in the Contiguous United States.