Given that herbal products can have medical, food (nutritional) and cosmetic purposes, the aim of this paper is to show the complexity of their regulatory classification into groups, and the importance of setting harmonized legal framework. Many herbal products due to their characteristics belong t o various regulatory groups so we consider them to be herbal borderline products. Both at European and national level, there are still no clear standards or equal access to herbal products and their classification is not unambiguous since there is still no harmonized legal framework that would allow the same criteria for herbal borderline products. In this paper the examples of classification for some herbal borderline products are shown: herbal medicine - food supplement, herbal medicine - medical device. Also, this paper points out the importance of implementing a harmonized approach to herbal borderline products, so that all of them are released to the market having proven quality and safety for a presented purpose. It can be concluded that since a particular berbal product can be found on the EU market registered in various regulatory groups there is a need for adoption of harmonized legal framework for borderline products on European Union level. Harmonized legal framework for borderline products would define common criteria for classification and therefore facilitate the registration of borderline products. Also, only products of acceptable quality, safety and purpose would be available to consumers and patients.