CARLSBAD, Calif.--(BUSINESS WIRE)--Invitrogen Corporation (NASDAQ:IVGN), a provider of essential life science technologies for research, production and diagnostics, today announced the launch of CELLstart™, the first fully defined, completely animal origin free substrate in the marketplace for the attachment and expansion of embryonic, mesenchymal and neural stem cells. CELLstart™ provides the serum-free and feeder-free scaffold upon which stem cells grow in both research and therapy applications.