Crest 3D Whitestrips | $10 off @ Amazon This post may contain affiliate links. That means if you click and buy, I may receive a small commission. Please see my full disclosure policy for details. Last updated - March 20, 2023 20 Mar There’s plenty to smile about with savings on Crest 3D Whitestrips at Amazon. Normal price is $45.99, but with the $10 coupon at Amazon, your price goes down to $35.99! Also, you can save more by signing up to Subscribe & Save.