||Glycacor assay control is a lyophilized preparation of human plasma in LDL Diluent. After proper reconstitution with water, the preparation gives a specific Glycacor value within the useful range of the assay. The actual value is dependent upon manufacturing lot, but is typically that found in normo-glycemic plasma. The reconstituted Glycacor Assay Control shows some turbidity. It is unstable after reconstitution, and must be used immediately.