Ostrea edulis shell

Ostrea edulis shell is an animal extract derived from the shells of the European flat oyster. It is primarily composed of calcium carbonate and has a long history of use in traditional medicine, especially in Traditional Chinese Medicine (TCM), where it is known as "Mu Li." In TCM, it is used for its sedative, astringent, detoxifying, anticonvulsive, and anticoagulant properties. Modern uses include over-the-counter dietary supplements to prevent or treat calcium deficiency and as an antacid. Research suggests potential bioactive effects such as antimicrobial activity, promotion of osteogenesis (bone formation), anti-fibrotic effects, and lipid-lowering properties. The primary mechanism relates to its role as a source of calcium carbonate for bone health and mineral supplementation[1][2][5][6][8].

Brand names

Calcium Oyster ShellAlka-MintsAlka-Seltzer Cool Action Heartburn ReliefAlka-Seltzer Extra Strength Heartburn ReliefCal-Gest

Other names

Ostrea edulis shellColchester Native Oyster ShellCommon Oyster ShellEdible Oyster ShellEuropean Flat Oyster ShellMud Oyster ShellOstrea Shell ExtractOstrea Shell PowderOyster Shell ExtractOyster Shell Powder