Our probiotics are freeze-dried, but the process does not affect their potency and allows them to be shelf-stable without refrigeration.
The probiotics we use are meophiles.
A mesophile is an organism that grows best in moderate temperature, neither too hot nor too cold, with an optimum growth range from 20 to 45 °C (68 to 113 °F). The average human body temperature is 37 °C (98 °F).
As the probiotics are freeze-dried, they reactivate upon contact with both the appropriate temperature and water. This should only occur after ingestion.