Needle-free hydrafacial, as the name suggests, usually refers to hydrafacial needles without needles, which usually do not cause damage to the mucous membrane of the skin. Generally speaking, needleless hydration is mainly through the principle of air pressure explosion, which can explode the nutrient components into nanoscale molecules, and then through the penetration effect, reach the basal layer of the skin, which is better for the patient’s skin, and can achieve moisturizing, water locking and rejuvenation effect. Compared with traditional hydrafacial injection, needleless hydrafacial will not cause epidermal damage and belongs to non-invasive hydration therapy. Because of the characteristics of needleless and painless, it will reduce the chance of bacterial infection of facial skin, so it can be used to improve women’s skin dehydration problems. Although the effect of needleless water light is better, but also to go to the local formal hospital clinic, the quality of the sample material of the water light injection can be guaranteed, and should be operated by a professional physician, which can guarantee the postoperative effect and avoid the risk.