New Product Name: Bihakuko Solution Z (Old Product Name: Bihakuko Solution) Made in Japan, Registered as Cosmetics One bottle provides enough for 30 people. The Bihakuko whitening solution has further evolved. From April 1, 2025, glycyrrhizic acid, chamomile flower extract, and riboflavin have been newly added. This enhances the effect of supporting gum health and further strengthens the hygiene function of oral care. Furthermore, the design has been renewed, making it more stylish and easier to use. Product Features: Capacity: One bottle for 30 people (13ml) How to Use: Dosage: 3-5 pumps per use (up to 10 pumps for 8 minutes x 2 times) Before use: Shake well before use. #Whitening #SelfWhitening #Bihakuko #Charion #MouthOpener #BihakukoWhiteningSolution #OralCare #OralCare #WhiteningToothpaste #CharionWhitening