Amvax-B [Recombinant Hepatitis B Vaccine] is a noninfectious vaccine. It contains purified Hep. B surface antigen obtained by culturing genetically engineered Hansunula Polymorpha cells. The surface antigen is purified by several physicochemical steps and formulated as a suspension of the antigen adsorbed onto aluminum hydroxide. No substances of human origin are used in its manufacture.