What is a notable difference between alternating and direct current in beauty therapy?

In beauty therapy, direct current (DC) is noteworthy for its application in muscle stimulation because it provides a continuous flow of electricity in one direction. This characteristic makes it particularly effective for treatments aimed at stimulating muscles, such as electrical muscle stimulation (EMS). Direct current is utilized in various beauty treatments to enhance muscle tone, improve circulation, and promote overall skin health.

While alternating current (AC) does flow back and forth, it is typically not used for muscle stimulation in the same way that DC is. Instead, AC is more often employed in treatments like iontophoresis, where the direction of the flow can facilitate the movement of ions through the skin. This distinction is crucial for beauty therapists to understand the appropriate applications of each type of current in their treatments.