Vitrification and slow egg freezing are two different techniques with the same purpose, to preserve female gametes for future use in in vitro fertilisation (IVF) treatment with a high guarantee of success.
However, egg vitrification is a more modern technique with greater benefits. This method, unlike slow freezing, does not generate the formation of ice crystals when going rapidly from room temperature to -196ºC. This makes the viability of the oocytes more stable. This means that the viability of the cells is not compromised.