Nowadays, many families use the fast embryo freezing service. After all, this is a great hope that the parents will have a long-awaited child. Now they use a special technique of ultra-fast freezing. Here, ivf couriers will transport biomaterial anywhere in the country. This was a breakthrough in the science and practice of reproductive medicine. Since the main damaging factor for cells in the freeze-thaw process is the formation of ice crystals, this does not happen during ultrafast freezing.