Vitrification is extremely well suited for all the development stages of the embryo and especially for the delicate eggs.
Vitrification is an ultra-rapid freezing process that uses protective agents to prevent the formation of damaging ice crystals and preserves the embryo in a glass-like state at a temperature of -196°C. This reduces damage caused to cells by freezing and achieves a high freeze-thaw survival rate (over 80%). Before vitrification, the fluid in the cavity of the blastocyst is reduced using a laser.
Frozen embryo transfers (FET) can be performed either during a natural menstrual cycle or a medicated cycle.