Liquid mineral extract T J Clark's Colloidal Mineral Formula is a liquid extract of mineral compounds derived from humic shale deposits found to be rich in a number of trace elements. Humic shale extracts (plant deposits) predominantly contain sulphates of iron and aluminium and traces of colloidal mineral hydroxides. The term colloidal mineral is derived from the presence in these preparations of colloidal metal hydroxides. However, many of the minerals are present in ionic forms.

In addition to the sulphates of iron and aluminium, our colloidal mineral formula contains zinc, nickel, manganese, magnesium, calcium, chromium, boron, cobalt, copper, lithium and silicon. The formula also contains traces of several other elements including arsenic, caesium, vanadium, strontium, selenium, iodine and praseodymium. Humic and fulvic acids are also found in our preparation to enhance mineral chelation.

The legendary colloidal mineral formula has been sold worldwide for more than 75 years