Once repackaged as aliquots, the drugs are stored in the GMP-certified service laboratory. There is only one way to ensure that a biologic is stable to use months to years after its nominal expiration date. That is to store it in a frozen state (-80°C) before the end of its shelf life. This storage temperature ensures that when thawed, the biologic recovers its previous stable state and behavior. All our freezers are GMP certified and regularly monitored.