Comparison Between RF Skin Tightening and Ultrasonic Knife Skin Tightening

Noninvasive skin tightening technology is becoming increasingly popular, because, in the context of low risk and short rehabilitation period, both men and women can operate these high-energy radio frequency (RF) or focused ultrasound (HIFU) by doctors to tighten the skin and improve the facial contour, to improve the flabby and sagging skin caused by age.

About RF RF skin firming

The monopolar radiofrequency (RF) skin tightening instrument developed by foreign companies was first introduced in 2002. After 16 years of development, a new generation of improved versions has just appeared. This skin tightening instrument uses RF technology to heat the tissue 4.3 mm below the dermis to 45 to 55 degrees Celsius, so that the subcutaneous collagen is tightened and proliferated, suitable for tightening the loose skin of the face, neck, arms, abdomen, buttocks, and thighs. The instrument has a variety of comfortable and safe designs (such as using freezing to protect the epidermis, probe vibration to reduce pain, and using a disposable probe, etc.), and the general course of treatment only needs to be done once a year.

About HIFU

The high-intensity focused ultrasonic (HIFU) skin tightening instrument was launched in 2009. It uses ultrasonic technology to tighten and lift subcutaneous tissue safely through the skin. The principle is that focused ultrasound through two to three kinds of replaceable probe hair, multiple local hot spots enter the subcutaneous layers with different depths (3.0mm and 4.5mm), including the sarcolemma layer, to stimulate collagen proliferation and firmness.

RF and HIFU: are those the same for me?

We should know that whether using radio frequency or ultrasound, the effect after treatment will vary from person to person because everyone has different personal characteristics (such as age, eating habits, smoking habits, living habits) and skin characteristics (skin thickness, subcutaneous fat content, skin structure, etc.). The general satisfaction degree after treatment is as follows: very satisfied / satisfied 75%, generally 15%, and less than 10% respectively. These two types of instruments are suitable for men and women over the age of 25, and there is no upper age limit.

If both machines have not been done before, RF RF skin tightening will be recommended first, because this machine is more comfortable to do and can be used for the treatment of the whole facial skin. Unlike the ultrasonic instrument, it is necessary to avoid some thin forehead and nerve line distribution positions. During the treatment, there is only slight redness and less pain, because the energy of the machine is adjusted according to the guest's reaction, and it can be effective only by repeatedly heating the skin, without feeling too hot or painful. Radiofrequency is also more suitable for tightening large areas of the abdomen, buttocks, thighs, and other places, because its treatment probe is large, which is convenient for a wide range of positions.

These two kinds of skin tightening instruments have their unique advantages and limitations. The order of making the machine is not important. The most important thing is to understand that these machines can only tighten the skin to a limited extent without the effect of surgical face pulling. Generally, the improvement of skin condition is about 30%. If the effect of RF RF skin tightening is not up to standard or ideal, HIFU ultrasonic skin tightening can be done 6 to 12 months later to tighten the subcutaneous tissue, because these two instruments have complementary effects, and each has its advantages and disadvantages.

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