It’s a mixture of water and tiny silver particles. Today, colloidal silver is often referred to as nano silver (although, not everything labeled "colloidal silver" qualifies as nano silver). The silver particles in nano silver are especially tiny (less than 100 nm), and their minuscule size gives nano silver bigger benefits.

Earthpaste doesn’t expire, but it has a "best by" date that’s two years after the time it’s manufactured. We know all the "best by," "use by," "sell by" terminology you see on products can get confusing, so here’s a quick explanation of what that means. A "best by" date is different from an expiration date. It means that after this date, your Earthpaste may begin to decline in effectiveness and flavor but is still safe to use.

In prehistoric times, there was an inland sea covering what is now Redmond, Utah, known as the Sundance Sea. That sea is gone, but it left behind a large, pristine, underground salt deposit—which is where we mine Real Salt.