An electrode (10) for transcranial current stimulation is provided. The electrode (10) comprises at least two pins (11a, 11b) for contacting the skin of a living or human being, and a current delivering unit (12) connected to the at least two pins (11a, 11b). The current delivering unit (12) is configured to estimate the corresponding range of the respective contact impedance with respect to the skin for each of the at least two pins (11a, 11b) or to analyze the corresponding level of the respective contact impedance with respect to the skin for each of the at least two pins (11a, 11b). The current delivering unit (12) is configured to distribute a desired current over all of the at least two pins (11a, 11b) or to select a set of the at least two pins (11a, 11b) for delivering a set of partial currents in order to achieve the desired current.