There are several modalities for non-surgical skin rejuvenation and skin tightening. Some send focused RF energy under the skin while others use fractional needle RF with direct contact. What is important is the quality of the machine as well as the practitioner doing the procedure. For facial aesthetics, I usually do not prefer treatments consisting of energy focusing under the skin. To my belief, these treatments will unevenly cause fibrosis of the subcutaneous tissue also resulting in fat atrophy, which will end in a more aging skin. Needling procedures with RF are my primary tool for non-surgical skin rejuvenation and tightening in the face, after facelift procedures of course. Hope this helps, Ali Rıza Öreroğlu, MD FEBOPRASEuropean and Turkish Board Certified Aesthetic, Plastic and Reconstructive SurgeonIstanbul, Turkey