How Inmode RF Works On Fat And Dermis

First published: 2020-08-08 / Last reviewed: 2026-05-28

This is a guide to InMode Former compiled by Dr. Choi Byeong-geun of SHINE U Clinic Konkuk (3 minutes walk from Konkuk Univ. Station Exit 1).

There are many types of lifting devices, but those that use high-frequency waves, like InMode, have a slightly unique operating principle. This is because they go beyond simply pulling to treat both the fat layer and the dermis. Let's break down its structure step by step.

Skin lifting can be applied not only to the face but also to the neck or abdomen. The methods used are broadly divided into three types:

• Injecting PDO threads that dissolve inside the body
• Utilizing High-Intensity Focused Ultrasound (HIFU)
• Using Radiofrequency (RF) energy

InMode falls under the third category, the high-frequency method.

The basic principle is to concentrate high-frequency energy on the desired area to heat and contract the collagen inside the skin. This approach allows for tightening each layer, from the epidermis to the dermis and the thin SMAS layer.

At the same time, the deep skin temperature is raised to between 45 and 47 degrees Celsius, causing changes in the fat cell membranes of the subcutaneous fat.

• The internal environment of fat cells becomes difficult to maintain, leading to cell death.
• The decomposed waste products are expelled from the body through blood vessels.
• Consequently, the fat layer thickness is reduced, helping to refine the jawline.

This mechanism is reminiscent of fat-dissolving injections and is a characteristic beyond simple tightening.

Ask if the high-frequency method is right for my double chin

Multipole high-frequency energy is delivered to promote the formation of substances related to elasticity. While raising the deep temperature is similar to the fat cell stage, the difference is that the focus is on the dermis rather than subcutaneous fat.

• Collagen and elastin
• Hyaluronic acid that connects them
• A structure that aims for both lifting and skin tightening

The pain is generally minimal, to the extent that separate injection or topical anesthesia may not be necessary, and it is known to cause less swelling or bruising. A temperature sensor checks the skin temperature in real-time to manage excessive heat. However, individual responses may vary.

Rather than choosing based solely on a low price, it is advisable to check whether genuine equipment is used and if there is expertise in adjusting the intensity and shots according to skin characteristics. Since results may vary by individual, please consult with us first.

Consult about InMode lifting

Authored by: Dr. Choi Byeong-geun (Chief Director of SHINE U Clinic Konkuk / Member of the Korean Society for Laser, Dermatology and Hair, the Korean Academy of Aesthetic Plastic Surgery and Laser Medicine, the Korean Filler Society, etc.) Last reviewed: 2026-05-28

This article provides general information about procedures and does not replace diagnosis or treatment. The suitability and results of procedures may vary by individual.