the rf energy is delivered through the focused tip of the micro-needles, leading to far-less trauma to the surrounding epidermis. this leads to significantly decreased discomfort and down time for the patient compared to conventional fractional lasers. non-insulated micro-needles are more effective and takes care of both epidermal and dermal problems without the need for additional superficial fractional rf treatments (sfrs).insulated needles: protectepidermis, avoid burning
