Call us crazy for not wanting to put bleach in our mouths, but we prefer to keep our pearly whites gleaming with a natural whitening toothpaste rather than little trays full of peroxide. The Whitening Plus Peppermint Twist formula by the Natural Dentist uses a special polishing agent to remove surface stains, as well as natural fluoride to keep your chompers strong. Plus, the paste contains no dyes, saccharin, sugar, alcohol, preservatives or SLS, a detergent that can irritate the mouth. Careful with that ear-to-ear grin—you might blind somebody. $5.99 at TheNaturalDentist.com.