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This AAD.org paper offers relief for many skin problems:

A relative newcomer in the acne playing field, radiofrequency (RF) energy has been gaining attention for its effectiveness in shrinking oil glands and improving acne scarring and overall skin texture. This novel approach works by delivering intense heat deep into the skin to reduce the size of the oil glands associated with acne. A built-in cooling device protects the top layer of the skin during the procedure, keeping it intact.

Two non-ablative (or non-wounding) RF devices are being studied for treating acne - one using monopolar RF energy and the other using bipolar RF energy in addition to blue light. One study using one to three treatments of monopolar RF energy on 22 patients with moderate to severe acne reported a more than 75 percent overall improvement in acne lesions at the end of the study. Another study using a combination device delivering pulsed blue light and RF energies found a 47 percent average reduction in lesions in 32 patients with acne after eight treatments administered twice weekly for four weeks.