BioMed HeparPlex formula contains milk thistle and schizandra berry, that have liver protective and healing characteristics. Silymarin, the active ingredient in milk thistle, is protective for liver cells against various toxins and stimulates the liver’s own regenerative powers. Schizandra berry (Schizandra chinensis) contains lignans, mainly schizandrins, which act to prevent liver damage, promote liver repair and stimulate normal liver functioning.