Frozen human serum from fresh whole blood. Blood comes from a healthy donor aged between 18-66. Donors are screened and tested negative for HIV, Hepatitis B and C and Syphilis. The serum is stored and shipped under frozen conditions. The serum is shipped to arrive within 5 days of collection. These products are for use in Biomedical Research only. They are not to be used for any form of human treatment, or for any purpose that is prohibited by law, including any use for human reproductive cloning.