The Embryo Culture Media from GYNEMED includes GM501 Basic that must be supplemented with Human Albumin Solution to a protein end, GM501 Cult, GM501 Cult with Gentamicin, GM501 Cult with Gentamicin and Phenolred where the medium must be equilibrated over night in a humidified CO2-incubator and finally GM501 Mineral Oil; the pre-washed twice with ultra-pure water