Sodium Bentonite has electromagnetic properties that make it very absorbent which will help draw out metals and toxins from your skin. The Indian Healing Clay Powder by Majestic Pure Cosmeceuticals is made in the USA and you can purchase it knowing that it's risk free on Amazon.
If you want to buy your own container you can do so on Amazon by clicking on the links. Right now the price is about $13.00 for a container of 16 oz. I think if you use it on a weekly basis this product should last about 6 months. That is a hundred times the savings from a mud mask at a spa.