These substances have pharmacological activity or other direct effect in the diagnosis, cure, relief, treatment or prevention of diseases or influence the structure and function of the human body. So far the general definition of an IFA.

In LABEA, this definition is broadened and specified since, by specializing in IFAS of plant origin, herbal extracts and herbs, the concern is extended to other industries and branches regulated by the ANMAT, such as the cosmetic and veterinary industry, food, domestic.