Benefits Single application per session: The product can remain in contact with the teeth for up to 40 minutes without having to be replaced as the ph remains stable throughout the session. Besides, it causes less sensitivity. Contains calcium: Significantly reduces the decay in microhardness of the enamel, keeping the integrity of the enamel. Ease in mixing the phases: A syringe coupling system allows the two phases to be easily mixed, ensuring perfect homogeneity. Self-catalyzed system: The exclusive formula of Whiteness HP Blue contains catalysts that make it much more active and efficient, dispensing with the use of external sources of acceleration. Pre-measured portions: The proportion between the thickener and peroxide phases comes pre-determined and packaged in syringes, which facilitates the process of preparing the gel and saves time. The total measured amount is enough to cover the smile line on both dental arches, without waste. Does not change color: The product does not change its color throughout the process making the visual control easier.