Final answer:
Galvanic current is a technique used in dermatology and aesthetics to produce a lifting effect on aging skin.
Step-by-step explanation:
Galvanic current that is used to produce a lifting effect on aging skin is a technique used in the field of dermatology and aesthetics. It involves the application of a low-level direct current to the skin, which stimulates the muscles and tissues, resulting in a temporary lifting and toning effect. This treatment is often used as a non-invasive alternative to procedures like face lifts.