Offering Opalescence Boost PF 40% Econo Bulk Refill pack for a unparalleled teeth whitening results. This in-office power whitener is a chemically activated gel that delivers brighter, whiter teeth after just an hour in the dental chair. The powerful 40% hydrogen peroxide gel is specially formulated to activate without the need for LED whitening lights, ensuring a quick, effective, and affordable experience. The unique double-syringe configuration makes the application process seamless and efficient.