PromoCell Cryo-SFM is a protein-free, defined and animal component-free cryopreservation medium. The optimized formulation is based on methylcellulose, DMSO and other cryoprotectants for the cryopreservation of human and animal primary cells. Cryo-SFM provides excellent results with all types of cells including primary human cells, stem cells and cell lines. Cells frozen in Cryo-SFM exhibit superior viability, attachment and subsequent growth performance after thawing. The medium is the first choice for all types of primary cells and cell lines.