A note of caution: LL Magnetic Clays are sold with different herbs packs that you mix into the clay before use. The herb pack for the one specific to helping remove mercury appears to contain garlic (based on the smell). Some mercury-toxic individuals are VERY senstive to garlic and the like and should probably not mix in the herb pack. This doesn't mean that using the clay alone wouldn't work as expected, it's just that the herb pack won't accelerate the removal of mercury.