Score!! Right now on Jane, you can get this Home Teeth Whitening 3D System W Free Gel Only $10.98! (Reg. $100). The whitening gel is the same strength used by dentists. This high viscosity gel is the standard used throughout the dental industry for take-home whitening, as well as in-office whitening treatments. One laser treatment at a dentist’s office can run around $299-$1,000.