The Crest 3D Whitestrips Professional Effects Plus teeth whitening strip kit contains 20 teeth whitening treatments each with 1 upper and 1 lower whitening strip (totaling 40 strips), plus two bonus ...

Spiff up your smile while these pro-grade treatments with 70,000+ fans are down to their all-time low of 2024.

$27.99 at Amazon (Save $18) Simply apply the Crest 3D whitening strips to your top and bottom teeth for 45 minutes a day. Or, apply the one-hour express treatment to your teeth for 60 minutes.