Give your smile The Works. From Supersmile, The Works Mint on Mint Toothpaste contains Calprox -- a proprietary encapsulated form of calcium peroxide -- fluoride, baking soda, and other key ingredients to help remove extrinsic stains and help prevent cavities In in-vitro testing, The Works toothpaste: -- whitened teeth an average of six shades after 10 two-minute manual brushing sessions, equivalent to five days of use -- removed an average of 72% of the extrinsic stain deposits after ten two-minute manual brushing sessions, equivalent to five days of use -- whitened teeth an average of 1.4 shades after two minutes of manual brushing -- removed an average of 18% of the extrinsic stain deposits after two minutes of manual brushing Plus, you'll also receive Whitening Pre-Rinse, a 45-degree Next Generation Clear Toothbrush, and a shade guide to help track your results. Whitening Pre-Rinse helps remove temporary surface discoloration and helps clean and boost whitening of teeth. How do I use it: Rinse with a teaspoonful of Whitening Pre-Rinse for 30 seconds. Dilute with water if sensitive. Place a pearl-size drop of The Works toothpaste on a dry (yes, dry!) toothbrush. Brush the area between each tooth where the gumline meets in circular motion for two minutes, twice a day. Rinse afterward. To track your results, mark your starting teeth shade on the guide and track your weekly shade improvement. From Supersmile. Includes: