- Polanight is a convenient tooth whitening solution, that you can apply while you sleep. It contains fluoride which remineralises your tooth to protect against tooth sensitivity and also contains pola Desensistising Technology (PDT) to protect the nerves and nerve endings in your gums. PDT also protects your gums from irritation, burning, pain or long term nerve damage. polanight is available in a variety of different strengths, with the higher concentrations of carbamide peroxide able to achieve stronger whitening in a shorter period of time. The strengths of polanight available include: - 10% carbamide peroxide - 16% carbamide peroxide - 18% carbamide peroxide - 22% carbamide peroxide - Note: 1% of hydrogen peroxide equates to 3% of carbamide peroxide. **For further product information, please contact Chat Support**