Radiofrequency devices began with cutaneous RF devices such as Thermage, Exilis, Venus Freeze, Pellevee, and Accent XL. These devices needed to maintain the temperature at less than 40 degrees centigrade or epidermal damage would occur. These devices work with bulk heating and were found to produce inconsistent results often with little changes. More recently, radiofrequency needling devices such as Ematrix, Evolastin, Infini, and Fractora have allowed for a deeper penetration bypassing the epidermis when desired.