The pursuit of beauty is getting higher and higher among modern urban women, and it is the pursuit of more and more women, especially successful women, to make themselves more beautiful and to keep their beauty lasting. There are various methods of beauty, and non-invasive laser has been increasingly used as the preferred treatment method. The ever-changing development of technology has also provided modern women with more options: photorejuvenation (also known as color light, compound color light), laser skin purification, radio frequency skin tightening ……. While people enjoy the beauty of technology, they also have many questions: Q: Can photoelectric treatment make the skin thinner? A: Many people think that photoelectric treatment will damage the skin, the skin surface is destroyed, just like the wall skin is chiseled off, the thinner it is done. In fact, after 25 years old our skin with age, collagen and elastin loss, skin gradually thinner. And photoelectricity lightens pigmentation, removes small dilated blood vessels, repairs photo-damaged skin, and improves the appearance of epidermis and dermis through selective thermal action. At the same time, the photo-thermal action of photoelectricity can activate skin fibroblasts, increase collagen expression, make the dermal collagen fibers and elastic fibers produce molecular structure changes, increase the number, rearrange, and restore the elasticity of the skin, thus achieving the effect of reducing wrinkles and pores. Therefore, photoelectric treatment not only will not make the skin thinner, but also will make the thickness of the skin increase, making the skin tighter, more elastic, and transforming it to a younger age. Q: Will photoelectric treatment make the skin sensitive? A: Many people think that photoelectric treatment skin thinning, skin without “old skin” protection, skin will become sensitive, not heat-resistant, not wind-resistant, sensitive to cosmetics. It is true that photoelectric treatment immediately reduces the moisture of the epidermis, or the stratum corneum is damaged; exfoliative treatment of laser will form scabs. However, all the “damage” is within control and will heal quickly. The newly healed skin has a complete structure (including the stratum corneum, which will be replaced by the old and the new even without treatment) and the function of the old and the new, so the scientific photoelectric treatment will not make the skin sensitive. Q: Will photoelectric therapy produce dependence (addiction)? A: Many people think that the effect of photoelectric treatment is OK, but once done, it will produce dependence (addiction), not to do will rebound or deteriorate. Hold this view is not clear understanding of the laws of aging and the science of beauty. The aging of our human skin is continuous (pigmentation, red blood, wrinkles), and will not be suspended because of anything, all we do is to slow down the pace of aging. Phototherapy is like cleaning a dirty room, it will be better with a little treatment, but after a while it will still be dirty and still needs to be cleaned. To get better results, it is necessary to have multiple treatments or maintenance treatments. This is not because we have become dependent or addicted to photoelectricity, but because the rotation of the wheel of age requires it. Q: Will one (course of) photoelectric treatment be enough to solve my problem completely? A: Asking this is just to get two answers: 1 how many times of specific treatment, 2 will the cure make you completely well, or not. The human body is complex, each person’s response to a certain stimulus and its degree is different, the same problem, some people three times to get very good results, some people seven or eight times may not achieve good results. It is like the amount of alcohol some people drink a couple of white wine to get drunk, some people drink a pound without falling. Understand this, you can understand why laser needs multiple treatments, you will understand that all problems can only get the maximum possible relief, not a cure. That is to say the idea that it’s all in one go is not scientific. Q: I need to protect myself from the sun after photoelectric treatment, can I stop doing the treatment without sun protection? A: There are clear requirements for sun protection after photoelectric treatment, generally pay attention to sun protection within 3 months after treatment to avoid pigmentation. However, it should be noted that sun protection is not something that should be paid attention to only after photoelectric treatment. Research shows that the ultraviolet rays of the sun are the main killer of skin photoaging (pigmentation, erythema, fine wrinkles). From the perspective of preventing photodamage and protecting the skin, we should pay attention to sun protection no matter what time of the day, and choose different sunscreen according to different environments.