Once your hair follicles arrive at our facility, they are visually inspected, followed by contamination analysis. Then our technicians will analyze the follicles for viability. Once confirmed viable, the hair follicles are are then suspended in a liquid that helps protect the cells from ice crystal damage. They are placed in a scientifically controlled rate freezer which freezes them at a predetermined rate until they reach -150°C. Your hair follicles and the cells in them are then cryopreserved in vapor phase liquid nitrogen at -190°C in separate vials and stored in two separate cryotanks which creates redundancy of samples for your peace of mind and multiple future uses.