What is the difference between the hydrogen and carbamide peroxide gel? Which is the better choice?
A. There is a 3 to 1 relationship between carbamide and hydrogen. This means that 12% hydrogen peroxide is equivalent (in theory) to around 36% carbamide peroxide. Some people prefer carbamide because it is softer on the gums. However, in practice we have found that hydrogen peroxide works much better than carbamide. We recommend the 12% hydrogen peroxide.
