SAN DIEGO & CARLSBAD, Calif.--(BUSINESS WIRE)--Invitrogen, a provider of essential life science technologies for research, production and diagnostics, and Novocell Inc., a stem cell engineering company, today announced the launch of a new fully-defined, serum- and feeder-free media specifically formulated for the growth and expansion of human embryonic stem cells (hESCs). The product, known as STEMPRO® hESC SFM, will be sold by Invitrogen under a licensing agreement with Novocell.