Kikkoman Black Bean Sauce (8.7 oz) is indeed vegan. It does not contain any animal or animal-derived ingredients. The sauce primarily includes water, fermented black soybeans, garlic, miso, sugar, soy sauce, and various seasonings​
In terms of flavor, this sauce is known for its rich, savory profile, enhanced by garlic and the umami notes from fermented soybeans. It's often used in Asian cuisine to add depth to stir-fries, marinades, and as a condiment