Hydrogen Peroxide as a Mouthwash: Benefits and Risks
Hydrogen peroxide mouthwash may help reduce plaque, gingivitis, bad breath, and sore throat symptoms, but only when it is properly diluted and used briefly. Used too often or at the wrong strength, it can irritate or burn the mouth, damage enamel, and cause harm if swallowed.
Essential Concepts
3% only; dilute with water; rinse 30 to 60 seconds; spit out; do not swallow; ask a dentist before regular use.