dot matrix laser skin changing system is a new revolution in plastic surgery. KL CO2 dot matrix laser skin changing system will give the most effective treatment and improvement to wrinkles, acne, chloasma and scars, loose skin and photoaging skin. The ordered conical holes produced by high-energy laser can obviously tighten the skin in a short time, effectively improve it, and satisfy people who are eager for youth and beauty to the greatest extent. The main functions of lattice laser are as follows: the cone-shaped hole formed by laser acting on tissue (large skin surface and small under dermis) will promote the tightening of skin surface during repair; Laser can promote collagen proliferation and improve skin tissue in a long time. The therapeutic principle is that the equipment emits laser in scanning lattice mode, which can form a burning area composed of laser action lattice and interval on the epidermis, each laser action point can be composed of single or several high-energy laser pulses, and the laser action point can directly reach the dermis and form conical pores. Under the action of laser, it stimulates the proliferation of tissue collagen and promotes the reorganization of collagen. Also, due to the shrinkage repair of the conical hole, the skin will have an obvious plump and tender effect, so that the skin relaxation phenomenon can be obviously improved, and the skin tightening effect can be achieved quickly, so that the skin becomes delicate, smooth and elastic, and the skin can be qualitatively improved.