I have been using DermaMag from Magnesium Direct with excellent results. Evidently, DermaMag also comes from the Zechstein seabed and may be the purest magnesium oil yet.
It is the same exact authentic magnesium oil that Dr. Mark Sircus talks about and even comes with the "Zechstein Inside" logo on the bottle.
The nice thing about it is that it comes in the 32-ounce size so you dont have to make a $100+ purchase to get enough for the footbaths.
Their website also has great info on magnesium chloride in general.
You can go to Magnesium Direct by clicking the link: Magnesium Oil or Magnesium Chloride
Prehistoric Magnesium Oil™ is an Untouched 250 million year old Magnesium Chloride with other natural trace minerals hidden in a geological formation from the Late Permian Era discovered here in America - the same geological formation (Late Permian Era) as the Zechstein® Seabed Products from Europe. We have the ONLY Prehistoric Magnesium Oil™ in the Permian Era from the USA at a much less Price! For More Information Click Here
The Pacific Magnesium OilDrawn
from the ocean, Transdermal
Pacific Magnesium Oil offers an
unrivaled source for one of our most
vital minerals, a form of magnesium
that is absorbed directly into the
bloodstream through the skin for
immediate effectiveness in every
cell in the body.