I have sourced some of the best Zeolite Clay Capsules available - this is activated micronized food grade zeolite for maximum absorption of heavy metals, which it is traditionally used for.

90 veggie caps

One of the latest research paper mentions this

Based on the pore size and absorption properties, zeolites are among the most important inorganic cation exchangers and are used in industrial applications for water and waste water treatment, catalysis, nuclear waste, agriculture, animal feed additives, and in biochemical (medical) applications (Bogdanov et al., 2009).