How much silver is in a 4 oz. tube of Earthpaste?

Each tube of Earthpaste contains 2 ppm of silver.

Each tube of Earthpaste contains 2 ppm (parts per million) of silver. That's an incredibly effective yet safe amount. Based on the daily oral reference dose (RfD) set by the EPA,  a person who weighs about 154 pounds would have to consume silver that's over 50 ppm once per day to put themself at risk for any negative health effects. And of course, you're not eating Earthpaste, which makes the small amount of silver in the product even safer.