1 fl oz Ritual Use once a week, brushing your teeth only. Simply sprinkle just a bit on your clean, damp toothbrush and gently polish where you see stains. I like to slow grin at a loved one before I rinse, since I’m easily amused like that. A little goes a looong way! Now go blind someone with that toothy grin. Shelf Life Lasts 6 months. Store in a cool and dry place. Our products are organic and freshly made-to-order skin food. We do not use toxins that make things last forever.