what is in castille soap
Definition: So what is castile soap exactly? Castile soap is a vegetable soap traditionally made from 100% pure olive oil, water, and lye. Therefore, it is a vegan product because it does not include the addition of animal fats as some other soaps might.ll-natural castile soap is a green product because it is biodegradable, non-toxic, and safe to use for cleaning and personal care uses. Regulation. Because it's soap, it's regulated by the Consumer Product Safety Commission (CPSC), not by the FDA.