10 Dangerous Toothpaste Ingredients

10. Formaldehyde That same ingredient that coroners can't live without can be found inside of your toothpaste tube. Formaldehyde kills all of those small bacteria that climb onto your teeth after eating or sleeping. If a large amount of formaldehyde is accidentally ingested, the result could be fatal. Severe formaldehyde ingestion results in jaundice, kidney damage, liver damage, and death.

9. Detergent Foam, suds, activation! What would toothpaste be without that satisfying soapy feeling? Manufacturers use regular detergent in order to appease the masses that prefer bubbly toothpaste. While bubbles may be fun, be careful if you accidentally ingest a large amount of this stuff – swallowing detergent can cause digestive tract burning.

8. Seaweed Stretchy and slimy, seaweed holds that paste together. Without this green stuff, toothpaste would simply fall apart! The good news is that seaweed isn't toxic. In fact, seaweed has a number of nutritional benefits, though hitting the sushi bar is a better way of gaining those benefits.

7. Peppermint Oil Minty, minty, minty! Fresh breath can only be kept fresh with the help of peppermint oil! While refreshing when brushing your teeth, peppermint oil can cause a slow pulse, heartburn, and muscle tremors if it is consumed.

6. Paraffin As slick as the petroleum that it is derived from, paraffin creates a smooth paste that oozes onto your toothbrush. As you might imagine, paraffin wasn't meant to be eaten. If you happen to swallow this ingredient, you may end up with abdominal pain, nausea, vomiting, and severe constipation.

5. Glycerin Glycol Never heard of this ingredient before? Sure about that? Glycerin glycol is added to toothpaste in order to prevent the paste from becoming too dry – it’s also found in antifreeze. Even though glycerin is not toxic, this additive may cause nausea if swallowed.

4. Chalk That’s right – chalk. Thanks to the fact that chalk is made from exoskeletons, it’s hard enough to remove all of that caked on gunk from your pearly whites. Chalk dust may cause lung problems if inhaled, and swallowing a bit of chalk could cause bleeding.

3. Titanium Dioxide This is another common toothpaste ingredient, though it’s usually found in white paint. When added to toothpaste, titanium dioxide has the safe effect on your teeth as it does on walls – it keeps them nice and white (for a few hours, at least!). Ingesting titanium dioxide won't hurt you, but it isn't recommended either.

2. Saccharin Something has to combat that terrible detergent taste! Saccharin is sweet, but not too sweet – just the way that most people like their toothpaste! Saccharin has been a hot topic of debate every since Theodore Roosevelt was in the White House. The USDA tried to ban the substance in 1972, though it is considered “safe” to ingest today.

1. Menthol One last ingredient to add a minty note to your breath. Without menthol, toothpaste might taste like, well, chalk, glycerin, paraffin, detergent, titanium dioxide, and seaweed! Go ahead and ingest menthol if you like, but sipping some tea containing menthol is a far better idea than chewing on your tube of toothpaste.