Phthalimidoperoxycaproic Acid (PAP): active bleaching agent that whitens the discoloured molecules inside your tooth', potassium nitrate to desensitise nerves in the teeth, and sodium chlorite for stain removal and prevention.
Hydroxyapatite: makes up bone mineral and the matrix of teeth. It is hydroxyapatite that gives bones and teeth their rigidity.
Potassium Nitrate: Desensitising agent used in dentistry that protects the nerve.