Carbamide Peroxide

What is Carbamide Peroxide?

LUMIWHITE BY NIGHT Teeth Whitening gels contain a special whitening agent called Carbamide Peroxide. When it’s applied to teeth, the whitening agent breaks down to release Hydrogen Peroxide and urea over several hours. Hydrogen Peroxide whitens the teeth by breaking down the large organic molecules that cause staining of the teeth.

What does the law state?

Cosmetic products, such as LUMIWHITE Teeth Whitening, are subject to EU wide safety regulations. These EU requirements are implemented in the UK by the Cosmetic Products Enforcement Regulations 2013 – also known as the EU Cosmetics Regulation. These regulations forbid the use of teeth whitening products which contain more than 6% Hydrogen Peroxide or for any associated products, such as Carbamide Peroxide, which release greater than 6% Hydrogen Peroxide to be used for cosmetic purposes.

LUMIWHITE BY NIGHT 16% Carbamide Peroxide releases approximately 5.76% Hydrogen Peroxide whilst LUMIWHITE BY NIGHT 10% Carbamide Peroxide releases approximately 3.6% Hydrogen Peroxide. They are both safe to use under the supervision of a dentist as long as the patient is not allergic to any of the ingredients and there are no other contraindications.

Rest assured, LUMIWHITE Teeth Whitening products are safe to use. They have been passed by an EU assessor as safe to use and all products are registered into the Cosmetics Products Notification Portal (CPNP).

Carbamide Peroxide Structural Formula

Carbamide Peroxide vs Hydrogen Peroxide

Teeth whitening products containing 6% Hydrogen Peroxide can lead to greater tooth sensitivity though they do offer shorter wear times – as they release most of their whitening effect within the first 30-60 minutes. Hydrogen Peroxide decomposes much faster than Carbamide Peroxide which releases around 50% of its whitening effect in the first 2 hours and the rest up to 6 hours later. The latter is essentially much more chemically stable than Hydrogen Peroxide and this gives it a more predictable and longer shelf life.

Following a recent systematic review and meta-analysis by LuqueMartinez et al. (2016) it was concluded that Carbamide Peroxide, when applied in custom-fitted whitening trays (such as LUMIWHITE Superseal Teeth Whitening Trays) results in a better whitening efficacy than Hydrogen Peroxide.

10% Carbamide Peroxide vs 16% Carbamide Peroxide

The higher the concentration of Carbamide Peroxide, the faster the rate of whitening. This is because the speed of whitening is related to the amount of Hydrogen Peroxide available as well as the length of time it is in contact with the teeth. Ultimately, however, whether you choose to use LUMIWHITE BY NIGHT 10% or 16% Carbamide Peroxide the final teeth whitening results are similar and both will produce outstanding results.


To comply with EU law, we are unable to sell directly to the general public. LUMIWHITE Teeth Whitening products may only be sold to dental practices. If you are a dental professional and want to offer LUMIWHITE Teeth Whitening at your dental practice you must first apply to become a LUMIWHITE Teeth Whitening provider. The application form, which takes less than a minute to complete, can be accessed by clicking here.