SQ-1 Q-switch Laser ND YAG Laser Main FunctionTattoo removalUser Beauty Medi Spa Beauty Center/ Tattoo RemovalIndications of Treatment Dermis pigmentation,such as lentigines, blue or black tattoo,eyebrow color.Epidermis pigmentation, such as freckle, senior fleck and yellow, red, brown tattoo,lip color Parameter : Light sourceQ-Switch ND: YAG..