From the Manufacturer:
The minerals are Bio-Available, which means that the body uses what it needs and the remainder leaves the body naturally.
Because the minerals are 100% organic, there is NO Toxic Build-up in the body. People taking the minerals for the past 78 years have proven this!
Mined at the Original TJ Clark Mine and Manufacturered in an FDA Registered and Inspected Production Facility!
These 74+ plant-derived ionic minerals come from the Original Thomas Jefferson Clark mine in Utah that started it all back in the 1920's. They have been carefully extracted in purified water using a method pioneered by Thomas Jefferson Clark which other companies would love to know about! They have proven themselves worldwide since 1926 (Other "Copy-Cats" have only been around for about 19 years!) The minerals are produced in an "FDA Registered & Inspected" Production Facility using food grade equipment.