An amphoteric compound is a compound that can act either as an acid, or as a base in a chemical reaction.
A first example of water's amphoteric character is the fact that it can self-ionize to a small extent. A water molecule is capable of donating one of its protons (H+) to a neighbouring water molecule, forming the hydroxyde and hydronium ions.
Perhydrol is a solution of hydrogen peroxide (H2O2) at a concentration of 30% of weight by volume(w/v) or 100 volume strength.
Perhydrol is a mild antiseptic used on the skin to prevent infection of minor cuts, scrapes, and burns. It may also be used as a mouth rinse to help remove mucus or to relieve minor mouth irritation (e.g., due to canker/ cold sores, gingivitis). This product works by releasing oxygen when it is applied to the affected area. The release of oxygen causes foaming, which helps to remove dead skin and clean the area.