Minerals are absolutely essential for our body to function in a healthy manner. The ability to adjust the dose of each one separately at an appropriate RDA intake as well as bein able to individualize the dosing is extremely valuable. 
Trace minerals are most easily absorbed in a liquid form. This set contains 9  essential minerals: Potassium, Zinc, Magnesium, Copper, Chromium, Manganese, Molybdenum, Selenium & Iodine.