Radiofrequency for skin rejuvenation

 

One of the most promising new technologies for aesthetic treatments is the combination of two methods previously used individually for skin rejuvenation, microneedling and radiofrequensy. This combination therapy, known as fractionated radiofrequency, is effective for improvement in acne and acne scars, as well as fine lines and wrinkles, both on and off the face. It can also be used for all skin types and is associated with minimal downtime and few complications.

Radiofrequency technology was then developed for skin rejuvenation; it has been used for many years to improve skin laxity, rhytids, and acne scarring. This technology works differently than laser, as it uses tissue resistance within various layers of the skin to transform RF energy into thermal energy. This then causes collagen contraction and stimulates new collagen production. An advantage to RF over laser is that it should also be safe for all skin types since no light is emitted into the skin to stimulate melanin directly. There are both monopolar and bipolar radiofrequency systems available, and each has its limitations. Although there was initial excitement about RF, the author believes clinical results have been modest. Attempts to increase the electrotheraml damage the dermis crated hotspots at the level of the epidermis, necessitating aggressive cooling to prevent epidermal damage and fat necrosis. Without sufficient thermal damage delivered to the mid and deep dermis, there was no significant skin tightening.

Article by John J.Martin, JR.,MD

 

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