Thermal Response of In Vivo Human Skin to Fractional Radiofrequency Microneedle Device

Table 1

Treatment parameters.

Energy	Voltage (watt)	Radio wave (millisecond)	Time of electrodes existing in the skin (millisecond)
Test level (needle insertion only)	0	0	250
1	50	30	280
2	50	50	300
3	50	80	330
4	50	100	350
5	80	50	300