Normal tissues under the skin barely absorb the Laser energy at the wave lengths of 1064nm and 532nm. Therefore laser won't damage normal skin. No scars would be left. Automatic protect device of water-level and water-temperature makes treatment safe, efficient. It adopts magnetic pump instead of immersible pump.You can treat customers with it without pause to coll the machine. User friendly LCD touch screen makes operation easily. Its collimator makes the treatment safe, accurate and efficient.