- Who
- Oracare, Oracare
- What
- 2,045 people
- Where
- Philippines (Market Market)
- When
The most people using mouthwash simultaneously is 2,045 and was achieved by Oracare and History (both Philippines), in Market Market, Taguig City, Philippines, on 12 April 2015.
The attempt took place as part of Oracare's 10 year anniversary celebration.
