Check the listing for details. Kin B5 Toothpaste 125ml Toothpaste for Sensitive Teeth. Condition: New. Listed at 30.00 USD. The Kin B5 Toothpaste 125ml is specially formulated for sensitive teeth, with the active ingredient fluoride to provide relief and protection. This toothpaste also contains provitamin B5 to promote overall oral health. With a mint flavor and teeth whitening features, this standard-sized tube of toothpaste is designed to keep your teeth clean and healthy for up to 12 months after opening. The Kin brand is known for its quality oral care products, making this toothpaste a reliable choice for maintaining optimal dental hygiene.