Resumen

Objectives: Determine the efficiency of using the combination of yellow (589nm) and infrared (1319nm) lasers for the improvement of skin roughness and thickness. Introduction: Infrared and yellow laser treatments for improving skin tone and rejuvenation have become increasingly popular due to short downtime and fewer side effects compared to ablative treatments. Materials / method: The cheek area of 15 patients was treated for 3 sessions, once a month using 2 passes of infrared laser (1319nm) with 10x10mm square spot, 20ms pulse duration (240 nano-pulses of 60ns pulse width each one) and 30J. In the same treatment session the cheek area was treated with 2 passes of yellow laser (589nm), 10x10mm square spot, 20ms pulse duration (240 nano-pulses of 60ns pulse width each one) and 25J. Measurements of skin roughness and maximum skin depth were collected using a 3D imaging system and echography analysis. Results: All 15 patients showed significant improvement in all measured parameters (P<0.001) with no significant side effects. Conclusion: Combination of monthly treatments with a yellow (589nm) and infrared (1319nm) lasers are safe and effective.