Can I wear the strips longer than the instructed wear time to get better whitening results?
Related Questions
- Occasionally when fishing, I travel longer distances and will be out of sight of land in the Great Lakes from time to time. Do I need to get a VHF radio in case of emergency?
- Can I wear the strips longer than 30 minutes to get better whitening results?
- Is there the opportunity to teach for a longer period of time?