Professional Whitening System - Fluoride Free - 90DaySupply

What you are looking at is Professional Whitening System - Fluoride Free - 90DaySupply by Supersmile, a product. Between versions of the same thing, it is usually the details — capacity, finish, what is included — that separate them. Read the setup notes before first use; most early problems come from a step skipped at the start. Where one is discounted, compare the size and edition rather than the headline alone. Store it dry and out of direct sun, which is the simplest thing you can do for how long it lasts. Whoever is cheapest today may not be tomorrow, so it is worth looking again before settling on the best deal.