BioTime, Inc. is a biotechnology company engaged in two areas of biomedical research and product development. The Company’s first business segment is blood plasma volume expanders and related technology for use in surgery, emergency trauma treatment, and other applications. Its lead blood plasma expander product, Hextend, is a physiologically balanced intravenous solution used in the treatment of hypovolemia. Its second business segment is regenerative medicine. Regenerative medicine refers to therapies based on human embryonic stem (hES) cell technology designed to rebuild cell and tissue function lost due to degenerative disease or injury.