Coral calcium is collected from an above water source, never disturbing the living coral reefs. Helps to neutralize acid and maintain a healthy pH throughout your body.* Coral calcium possesses a high level of conductivity (electrical charge) for fast absorption and assimilation.* Has been certified by the Japanese Government, as safe foodstuff containing no source of radiation. Made of fossilized coral minerals from Yonaguni Island of Okinawa, Japan.