Whats the difference between the £99 service and the £49 service?
The £99 service provides you with customised whitening trays, the exact same ones a dentist would give you, whereas the £49 service provides you with thermoform trays also known as boil and bite trays.
The customised whitening trays are alot more comfortable, as they actually fit your teeth perfectly. They make sure the tooth whitening gel gets into all those hard to reach areas like the sides of your teeth whilst at the same time reducing the amount of carbamide peroxide gel that can irrtiate your gums as they are cut to the gingival line of your teeth. The thermoform, boil and bite trays however are alot thicker and are alot higher on the gums. They are also a looser fit which can result in patches of whiteness.
For best results we recommend, and we're sure your dentist will as well, that you have custom fitted witening trays. These come with the Whiter Than White two step system along with all the gel you'll need to make your teeth up to eight shades whiter.