7.5% Nano-Hydroxyapatite Whitening Toothpaste is an advanced, fluoride-free oral care solution designed to remineralize tooth enamel and gently reverse surface discoloration. Key Features & Benefits Enamel Repair & Strength: Formulated with a 7.5% concentration of nano-hydroxyapatite (nHAP)—a biocompatible mineral matching the natural composition of teeth—it fills in microscopic gaps to...