This leave-in treatment infuses keratin into the hair to repair damage. - Brand: KYOGOKU - Product Name: KERATIN MIST - Features: Leave-in treatment - Ingredients: Keratin - Sales: Over 700,000 units sold - Awards: 10 awards won The purchase date is unknown. Please refrain from purchasing if you are concerned about minor details. *Please note that the above points are based on a layman's assessment.