A dynamic electroporation appliance comprises an oblong isolating applicator (1) with a rounded front part (4) and with two annular electrodes (3) arranged on its front surface at the sides of an intermediate opening (2). The intermediate opening it linked to at least one duct (9) associated with a central seat for a syringe (6) for dispensing pharmacological or aesthetic products or active ingredients. The electrodes (3) are energizable to produce a dynamic electroporation effect on the treated surface.