Proven by numbers of clinical trials, we can assure to every fellow customer that the active ingredient in our gel can brighten the teeth effectively. As the ingredient of Alpha White is adopting 35% of CP whitening gel along with the used of nano blue light activation technology. Blue light activates the whitening gel by releasing the oxygen molecule, which can effectively decompose the yellow pigmenton the surface and even the deep layer of the teeth, and successfully remove these stubborn stains.