Ụkpụrụ na-arụ ọrụ nke usoro iwepụ ntutu isi laser bụ laser nke 808nm wavelength nwere ike ịbanye n'ime epidermis iji ruo ntutu isi.Dabere na nhọrọ foto-thermal theory, ike laser na-amasị nke ọma site na melanin na ntutu, na-emebi ntutu isi nke nwere ike ime ka ụkọ nri na-emeziwanye nkwarụ, ọkachasị n'oge uto ntutu.