Amazon.com has the 4.2 ounce tube of Colgate Optic White Stain Fighter Whitening Toothpaste in Clean Mint Flavor for $1,79 after applying the $2 off coupon available on the product page and Subscribe & Save.
One 4.2 oz. tube of Colgate Optic White Stain Fighter Whitening Toothpaste, Clean Mint
Optic White Stain Fighter is a stain removal toothpaste that fights stains and helps prevent new stains from forming
Removes 5X more surface stains with micro-polishing action (vs. ordinary non whitening toothpaste, after 2 weeks of continued use)
This whitening toothpaste contains clinically proven technology to safely remove surface stains and is enamel-safe for daily use

Colgate Optic White Stain Fighter Whitening Toothpaste, Clean Mint Flavor, 4.2 Ounce $1.79 AC & S&S - Amazon.com

$1.79