... corium layer, epidermal layer and subcutaneous tissue, through IPL energy directly penetrating into the underlayer of skin, ... corium layer and epidermal layer. Meanwhile , the IPL energy stimulates the collagen and elastic fiber molecules to ... communication. parameters:Light Source:Intense Pulsed LightHead:2 handlesWavelength:480nm, 530nm, 640nmSpot size:8x40mm (13x30mm,15x50mm)IPL light energy:1-50J ...