Epithelial barriers are found in many tissues such as the intestine. kidney and brain where they separate the external environment from the body or a specific compartment from its periphery. Due to the tight junctions that connect epithelial barrier-cells (EBCs). the transport of compounds takes place nearly exclusively across the apical or basolateral membrane. https://parisnaturalfoodes.shop/product-category/heart-drops-cinnamon/