Dongui Bio-calcium is a calcium agent fortified with powder of extract and combination of main medicinal herb ingredients, such as Rehmannia glutinosa, angelica root, Drynariae Rhizoma, the (dried) fruit of the Chinese matrimony vine, hardy rubber tree, cinnamon bark, phlomis root, licorice root, and cibotii rhizome.

Each medicinal herb builds strong bones and suppresses pain; they provide tonic and anti-inflammatory action, and relieve inflammation of bruises and prevent skeletal structure weakness, including fractures.

"Dongui Bio-calcium" is incorporated with the calcium function to relieve osteoporosis. It is also a health supplement for promoting nutrition for recovering specific diseases (Osteoporosis, osteomalacia, and rickets) in addition to diseases prevention and health supplementary.