When it comes to the ultrasonic knife, the internet is really “lively”, with a variety of claims and mixed reviews. Many beauty seekers feedback that the more they read about the ultrasonic knife, the more confused they become – what exactly is the ultrasonic knife? The more you read about it, the more confused you become. Will doing ultrasonic knife really “disfigure”? Today we’ll take you through the layers of fog and uncover the truth about “ultrasonic knife” anti-aging. First of all, what is the ultrasonic knife? The ultrasound knife is a technology approved by the U.S. Food and Drug Administration (FDA). The actual ultrasound knife uses focused ultrasound waves to stimulate collagen regeneration, the genuine ultrasound knife, which is produced by the U.S. Ultherapy company, is also the only FDA-approved ultrasound knife. The actual equipment is very expensive, if you play the two or three thousand dollars a time, the probe can not buy. The ultrasonic knife produced by the American Ultherapy company, there are 1.5mm, 3mm and 4.5mm three probes, can penetrate the epidermis, the deepest to reach the skin – SMAS fascia layer. Because the level is deep enough to hit, so the U.S. Ultherapy ultrasonic knife will have a dynamic image of the underlying skin, to assist doctors when playing to avoid nerves and blood vessels, this technology can not be done in Korea and domestic. Secondly, is there any effect? Most people can see the effect of tissue tightening, skin tightening, skin texture improvement and wrinkle reduction in a short period of time, and since skin tissue needs time to produce new collagen, the better effect appears between 4~6 months after treatment. Finally, are there any side effects of ultrasonic knife? If you search the word “ultrasonic knife” on the internet, you will find that in addition to advertisements, there are also negative comments about ultrasonic knife from users, such as: facial discomfort, redness, swelling, redness, local epidermal peeling and facial stiffness after treatment. The following is the mechanism of action of ultrasonic knife, to analyze the reasons for these side effects: 1, non-invasive ≠ harmless ultrasonic knife is the ultrasound will be focused on the designated area after the formation of a brief high temperature (up to 60 ℃), resulting in the contraction of the fascia (brain to make up the situation of steak contact to the frying pan), this local thermal damage will stimulate the body to repair – -stimulates collagen proliferation and reorganization, building a whole new collagen fiber network. And so over the next longer period, the tissue regenerates, achieving a firming and lifting effect. But after all, the heat has caused damage, and the damage is bound to be followed by swelling and congestion (imagine the change after scratching hard on the back of your hand with a few red marks), so it’s not uncommon to have those negative reviews. Of course, we can’t rule out that some illegal institutions are selling their products with shoddy instruments, causing skin burns and even nerve damage. 2, foreign approval ≠ domestic casual use As mentioned earlier, the U.S. version of the ultrasonic knife has been approved by the U.S. FDA to carry out, but China’s Food and Drug Administration (CFDA) has not yet approved ultrasonic knife related products in the domestic market, the domestic development of such business, are illegal to play the ball. Moreover, the U.S. version of the equipment is more expensive, do not rule out that you use the Korean version or domestic.