Microneedle RF Tips: Goldskin Elite (49 pins)These fractional RF tips are compatible with the Goldskin Elite only. Available in sets of 3, 5, 10, and 20. The 49 needle electrode has a therapeutic area of 110. 25 square millimeters, making it suitable for treating large areas of skin. Once the microneedles enters the skin, they release radiofrequency energy, directly injecting the energy into the dermis to promote effective denaturation of proteins and stimulate the proliferation of collagen.