Dextran is a branched glucan composed of linear a(1?6) linked glucose units and a(1?3) link initiated branches. The average molecular weight ranges from 3500 up to 500 000. They are used as volume extenders, stabilizers, matrix components, binding platforms, lubricants, and physical structure components. Low molecular weight dextrans are often preferred versus high molecular weight dextrans due to their different viscosities, aggregation, and permeation properties. Dextran is a branched glucan composed of linear a(1?6) linked glucose units and a(1?3) link initiated branches. The average molecular weight ranges from 3500 up to 500 000. They are used as volume extenders, stabilizers, matrix components, binding platforms, lubricants, and physical structure components. Low molecular weight dextrans are often preferred versus high molecular weight dextrans due to their different viscosities, aggregation, and permeation properties.