The zeolite has a grain size distribution with a maximum grain size of approximately 5 micrometers or a little smaller. 90 wt.% of the zeolite has grain size of 0.8-40 micrometers, preferably 80 wt.% has grain size of 1-30 micrometers. ACTIVITY : Osteopathic; Dermatological; Neuroprotective; Antirheumatic; Insecticide. MECHANISM OF ACTION : None given.