Biocare osteoplex 90vegicaps osteoplex is a combination of magnesium and calcium in their bioavailable citrate form with boron and vitamins d k vitamins k d calcium and magnesium contribute to maintenance of normal bones additional information vitamin d and calcium are needed for the maintenance of normal bones and teeth magnesium contributes to normal muscle function and the maintenance of normal teeth vitamin d contributes to normal absorptionutilisation of calcium and phosphorus