... absorb,the E-light energy can be absorbed a great by skin pigment when the E-light energy penertrate ... and refracted,so the energy which reach and absorbed by target tissue is only 30~40%,so in ... to RF energy which play a major role of repair is not affected by the epidermal pigment barrier, RF ... light, effect on the hair, absorb light energy by hair, and can conduct the heat energy transfered to ...