Apart from the milk used, no other ingredients of animal origin are used.  The enzyme used for our cheese is a microbial fermentation ingredient approved by the FDA.  It is NOT an animal (beef or pork) derived rennet.
(Rennet is used in the production of most cheeses.  The mammal’s digestive system must be accessed to obtain its rennet.  NON-ANIMAL alternatives for rennet ARE suitable for consumption by vegetarians.)