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What Can You Believe?

If you look for natural or alternative medicine on the internet, it’s easy to get lost in the welter of competing claims. This is especially true of clay therapy. You head will spin trying to keep up with ads or blogs touting the superior quality of illite, pascalite, sodium bentonite, montmorillonite, and calcium bentonite clays. The definition of these terms is often hazy or overly broad, which makes it more difficult to figure out exactly what you are being offered.

We can help simplify your search. The most effective clay for internal and external use is 100% pure calcium bentonite clay. All of the mines providing it are played out, except one. and we have exclusive access to it. Great American Clay is the only 100% pure all natural calcium bentonite clay on the market. You don’t just have to take our word for it. Your own research will bear this out.

In choosing a therapeutic clay, investigate your source. To our knowledge, Great American Clay is the only provider to

  • publicly post its Material Safety Data Sheet,
  • tell you the specific chemical composition of its clay, or
  • guarantee that its clay has not been washed, heated, or otherwise processed-except for milling. This is important, because processing, though it can improve purity, undermines therapeutic efficacy. Treated clay isn’t as effective as natural clay.

In visiting the websites of competing clay sources, we found some interesting unintended confessions. For example, at the website for Redmond Trading, we found the following exchange:

Q:  Is Redmond Clay a calcium bentonite clay?

A:  This is one of the most common questions people have after reading Living Clay (by Perry A___, about whom we will discuss more later)…

After highlighting a couple of differences between sodium bentonite and calcium bentonite clay, Redmond says:

The calcium question was probably designed to be sure you choose a clay intended for human consumption, but before Living Clay was published, no clay experts had ever focused on the calcium/sodium distinction.

Under the heading Why Might It Not Matter?, Redmond continues:

Like most Redmond Clay customers, we trust clay because we’ve seen it improve our lives, and because we can look back throughout history to see ancient cultures using it internally and externally. It’s hard to imagine a primitive healer inspecting a ball of clay and saying, “My goodness! This clay has more sodium than calcium! Spit it out!” It’s important to know the source of your clay, but (the difference) may not be as relevant as you may have read.

So far, Redmond has avoided answering the question. This paragraph is an attempt to dismiss it.

Finally, in a section titled: So, Is Redmond Clay a Calcium Bentonite Clay?, Redmond answers, but very indirectly. Note how it still tries to evade the question:

…Redmond Clay comes from one of the most unique clay deposits discovered so far- rich in both calcium and sodium. The unique composition is one reason Redmond Clay works so well in so many ways- the sodium content makes it more effective externally, while still sharing the benefits of  taking clay internally.

...natural products like clay don’t work the same for each person. Redmond Clay has has   helped tens of thousands of people, but it may not be the right clay for your body- finding the clay that works best for you is a personal journey.

This is interesting. Redmond has revealed more here than it intended to. If it believed that sodium bentonite clay is superior, it would say so. If it offered 100% calcium bentonite clay, it would say so. It says neither. And what are we to make of  “…finding the clay that works best for you is a personal journey”? Redmond is tacitly admitting: “There are certain claims we don’t dare to make.”

Redmond may believe these evasions are necessary. If your clay contains too much sodium, it will be much less effective in detoxifying, and it will promote water retention and weight gain.. A pure clacium bentonite clay is superior.


Aztec Indian Healing Clay is one of the most heavily promoted therapeutic clays on the market. On its website, Aztec alludes vaguely to “green clay or bentonite”, but does not  specify the mineral composition of its product. In its recipe for facial masks, Aztec recommends mixing its clay with apple cider vinegar. When a provider recommends this, it usually means the clay is high in sodium, and the acid in the vinegar is needed to help neutralize it.

The labels on Aztec’s products clearly state: Not Intended for Internal Consumption. This means it contains toxins. By contrast, our calcium bentonite clay is on the FDA’s GRAS (generally regarded as safe) list, and we can recommend it for internal consumption.


From just these two examples, you can see why we recommend doing your homework. From any source of therapeutic clay, ask the ten questions David Smith outlined earlier:

  • Is it a calcium-based bentonite?
  • Is the clay milled to at least a 325 screen mesh particle?
  • Is the PH at least 9.5?
  • Is the clay capable of absorbing and adsorbing positively charged ions?
  • Is its ionic ratio (drawing power) at least 30 to 1?
  • Is it a green swelling clay of the montmorillonite/smectite group?
  • Is it tasteless and odorless?
  • Is it all natural and clean, not having been processed or purified by any means?
  • Is it from a mine that has been protected from the elements over its eons of history?
  • Does it expand and adsorb to 3 times in volume? (3 parts water to 1 part clay)

Great American Clay happily answers all of these questions and more. Do other clay sources?


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