By Night is a 16% carbamide peroxide gel, containing potassium nitrate, which is proven desensitizer. Worn for 4 hours, or overnight, this gel is designed for patients who would prefer to not have their custom trays in during the day and would prefer to whiten whilst they are asleep. This gel releases oxygen free radicals (which whiten the teeth) over a longer period of time, due to its sustained release.
This gradual approach will still give fantastic results, due to the length of time the gel stays active. Key features: Optimum performance – Highest percentage formula available, Fast results, which are visible in less than a week, PH Neutral, the Viscous formula to eliminate wash out from saliva, In-built desensitizer, Water integrated gel to reduce dehydration, Sustained release formula, Amazing presentation.