With the passage of time, we see more and more wealth in our life day by day. However, youth, but gradually away, and the ensuing changes make us worry: even if we do not smile, wrinkles will appear on the face; even if we do not grin, the lines are stubbornly present; even if we do not pull the “donkey face” angry, cheeks can not stop sagging – our face begins to age. -Our faces are getting old. We begin to remember the days when our skin was as soft as skin, we bemoan the lack of vitality that comes with aging, and we worry about the potential threat posed to us by new, younger people. So, how can we keep our still youthful faces fresh and our mature faces looking good? Internal factors (genes) and external factors (photoaging) team up to steal our skin’s youth: the collagen and elastin content in the dermis decreases with age, and without sufficient collagen and elastin, our skin thins and becomes saggy. In the past, the only way to change this aging symptom was to turn to surgery, whose results were immediate, but the risks of surgery and the long recovery time discouraged many beauty lovers. At the same time, the surgery is only equivalent to a “clean-up” of the bloated structure, aging continues, and the quality of the skin does not improve. With the application and development of laser technology in the field of aesthetics, minimally invasive or non-invasive skin rejuvenation techniques are gradually becoming an important trend in medical development. At present, non-invasive skin tightening technologies can be divided into two categories: one is light-based (e.g. Near Infrared Light, NIR) and the other is RF-based (e.g. Deep Blue RF). The difference between these two types of electromagnetic waves is the depth of penetration and the difference in the principle of action, we will call them photoelectricity. Photoelectricity acts on human tissue and generates heat, which acts on the dermis and stimulates collagen, elastin and water-binding protein. Under the action of heat, fibroblasts proliferate, synthesis and secretion functions increase, new collagen is produced, the absolute amount of collagen increases, and the dermis becomes thicker; at the same time, the hydrogen bond will break, causing changes in collagen or elastin tertiary structure, producing a direct contraction effect, and the dermis elasticity increases. In this way, photoelectricity silently makes the skin become tight, the corresponding wrinkles become shallow, sagging begins to retract some ……, point change will make your whole person looks much more spiritual, seems to see your shadow a few years ago. Domestic and foreign application experience shows that, compared to other treatments, photoelectricity has the following advantages: 1, good skin tightening effect. According to the experience of domestic and foreign applications, NIR treatment after six months, up to 83% satisfaction, wrinkle improvement can be obtained 76% role of satisfaction. 2, comfort enhancement. Melanin for photoelectric wavelength absorption is relatively small, therefore, reduce the risk of burns for people of color, the corresponding burning pain is greatly reduced, and comfort is well improved. 3. Skin tightening + skin tone brightening. Skin tightening, loose, wrinkled skin is flattened, the skin’s reflectivity significantly improves the skin’s light refraction rate and skin tone is improved; at the same time, photoelectricity can expand blood vessels, accelerate blood circulation, improve skin permeability and brighten skin tone.