Today only. Amazon has the 3.75oz Lumineux Teeth Whitening Natural & Fluoride Free Toothpaste for $4.79 - 5% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 10% off with Subscribe & Save (can cancel at any time) = $4.07 with free shipping on $25+ or with Prime. Whitens without sensitivity, protects 99% of healthy bacteria.