This deal has ended.
This 20 treatment pack of Crest 3D White Whitestrips Professional Effects drops from $54.99 to $42.99
at Drugstore.com. As a bonus, check the "special offer" box on the product page to save an additional $7 bringing your price at checkout to $35.99. Finally, use this $10 mail-in rebate to bring the total paid price to $25.99. With free shipping, this is the best deal we could find on this pack by $12. There is no sales tax (except IL, NJ, GA, NY and WA).