Fertility / Products / Slow freezing

Slow freezing

Slow freezing
  • Cryopreservation requires dehydration
    As with all cryopreservation methods the cells need to be dehydrated before cooling and freezing. In contrast to vitrification, slow freezing uses solutions with low concentrations of cryoprotectants. This is compensated for with relatively long incubation times for the dehydration and rehydration steps. The cooling and warming rates are low. To be able to achieve a sufficiently low cooling rate a freezing machine is necessary.
  • Products for different developmental stages
    Embryos can be frozen at all developmental stages. Vitrolife provide kits for freezing and thawing of cleavage stage embryos, FREEZE/THAW KIT-1 and for blastocysts, G-Freeze/Thaw Kit.