Stem cells possess the unique ability to proliferate as an undifferentiated cell type, then, when properly stimulated, differentiate into multiple lineages of cells. Lonza’s TheraPEAK MSCGM Mesenchymal Stem Cell Growth Medium is a serum-free medium designed to proliferate human bone marrow derived mesenchymal cells in an undifferentiated state. The medium has been specifically designed and tested to ensure that the medium neither promotes spontaneous differentiation of cells nor inhibits cell differentiation to osteogenic, chondrogenic, or adipogenic lineages (when properly stimulated with an appropriate differentiation media). Serum-free media, such as TheraPEAK MSCGM Mesenchymal Stem Cell Growth Medium, are intended to support cell growth without serum supplementation. Lonza's TheraPEAK MSCGM Mesenchymal Stem Cell Growth Medium is of primary interest to those seeking maximal control over research and manufacturing variables. TheraPEAK MSCGM Mesenchymal Stem Cell Growth Medium does not contain phenol red or antibiotics.