In a study testing a new method called VitriBlast™ for freezing immature egg cells, researchers found that using this technique led to lower survival rates of cells after freezing compared to not freezing them. The goal was to see how well the VitriBlast™ Kit worked for preserving these cells. They used 117 immature egg cells, with some frozen using VitriBlast™ and two different devices to freeze them quickly. After thawing, only 61% of cells frozen with one device survived, while the other device had a survival rate of 15%. In comparison, the non-frozen control group had a much higher survival rate of 93%. Overall, the study shows that the VitriBlast™ Kit may not be the best choice for freezing immature egg cells.