Want to add a little extra gleam to your chompers before the holidays kick off? Amazon is running a series of promo coupons on Crest's popular line of tooth-whitening products to help make those pearlier whites a little less pricey. If you're a fan of Crest's 3D Luxe White Strips, a box of 20 Professional Effects treatments and two 1 Hour Express treatments is just $38.99 after an on-screen $5 coupon. A box of 14 treatments of Glamorous White Whitestrips is even easier on the wallet, with an on-screen coupon dropping the price all the way to $24.13, a $20 savings over the list price of $44.99. 

If you're not ready to take the Whitestrip plunge yet, Amazon's also dropping the price on Crest 3D Luxe Glamorous White whitening toothpaste. Clip the on-screen coupon to cut the price all the way to $4.95 for a two-pack of 4.1-ounce tubes, over 40 percent off the list price of $8.51. 

On the other hand, if you want to hit your mouth with some serious whitening firepower, Amazon is also cutting $10 off the price of a bundle pack of 10 No Slip Whitestrip treatments and a handheld whitening light. Crest boasts that the light offers dramatic improvements over Whitestrips alone, with positive results that last for up to $36 months. After the on-screen coupon, the price of the set is down to $109.95. You'll be smiling more confidently than ever before! 

Buy at Amazon: Crest 3D White Luxe Whitestrips Professional Effects - 20 Treatments and White Whitestrips 1 Hour Express - 2 Treatments Teeth Whitening Kit for $38.99 after on-screen coupon (list price $67.99)

Buy at Amazon: Crest 3D White Luxe Whitestrip Teeth Whitening Kit, Glamorous White, 14 Treatments for $24.13 after on-screen coupon (list price $44.99)

Buy at Amazon: Crest 3D White Luxe Glamorous White, Vibrant Mint Flavor Whitening Toothpaste - 4.1 Oz Ea, Twin pack for $4.95 after on-screen coupon (list price $8.51)

Buy at Amazon: Crest 3D White Whitestrips with Light, 10 ct. for $109.95 after on-screen coupon (list price $124.95)

Mental Floss has affiliate relationships with certain retailers, including Amazon, and may receive a small percentage of any sale. But we only get commission on items you buy and don’t return, so we’re only happy if you’re happy. Good luck deal hunting!