It's not just whitening- it's therapy for your teeth with Peppermint Oil. Crest 3D White Whitening Therapy Peppermint Oil toothpaste whitens teeth*, strengthens enamel, and freshens breath with Peppermint flavor. The 3D White Whitening Therapy collection is also formulated with an Active Mineral Complex. The formula fortifies your teeth. *surface stain removal. Toothpaste contains an Active Mineral Complex with Peppermint. Gently whitens teeth and freshens breath. The formula with an Active Mineral Complex fortifies your teeth.