2. Urine can whiten your teeth. Ancient Romans would often use urine to rinse their mouths for whiter teeth. The ammonia in urine, especially when left out too long, can easily remove stains.
2. Urine can whiten your teeth. Ancient Romans would often use urine to rinse their mouths for whiter teeth. The ammonia in urine, especially when left out too long, can easily remove stains.