?Purifying Blend Shampoo The milk_shake Purifying Blend provides intensive cleansing that refreshes the hair and scalp, removing impurities, dandruff, sebum and sweat. ADA seaweed provides natural antioxidants which protect the hair as well as essential vitamins and omega-3 fatty acids. Nettle extract smooths and conditions the hair whilst achillea extract removes dandruff and refreshes the hair.