Things You Find In Toothpaste

Watered down copy of an article in the latest 'Wired':

Sodium Mono-Fluorophosphate - Fluoride
Hydrated Silica - you know those packs of silica gel you find in packaging that say 'do not eat'? Yep. Them.
Propylene Glycol - thickener. A variant of this is used as anti-freeze.
Tetrasodium Pyrophosphate - prevents tartar
Sodium Bicarbonate - baking soda
Sodium Saccharin - artificial sweetener
Pentasodium Triphosphate - Stain preventer
Sodium Lauryl Sulfate - Detergent; stops you tasting sweet drinks after brushing
Carrageenan - seaweed gum
Flavour - mint and roasted malt
Sodium hydroxide - Lye - a common drain cleaner
Calcium Peroxide - whitener