SPERM FREEZING MEDIUM SPERM FREEZING MEDIUM A HEPES buffered freezing medium for usewith human sperm Contains 27% glyceroContains 0.4 % HSAProvided in 125ml plastic bottleOne-Cell Mouse Embryo tested (>80% 1-cell to expanded blastocyst within 96 hrs Store at 2-8ºC 18 months shelf life