A galvanic facial uses direct electrical current to introduce water-soluble substances into the surface of the skin.
This helps to improve absorption and is obviously therefore great for dry or dehydrated skin.
However, it can also help people with oily skin, as it removes congestion by reducing oil content and preventing acne breakouts.
In turn, galvanic currents boost the effectiveness of most any skin treatment. It can be a great anti-aging treatment.