FDA approved 44% carbamide peroxide whitening gel is 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.) LED light helps improve the whitening speed up result Keep track of progress through shade guide. Enough whitening gel for multiple treatments. Give you a white smile in a week.