How to say goodbye to the “double-chin fairy” living under my chin
ONDA vs. InMode: Which one will you choose?
Hello, this is Bellevue Clinic! The double chin that sticks out under the neck is really quite shameless. Even if you diet, it’s usually the very last thing to go, and as you get older, it teams up with gravity and settles in even more confidently. These days, many people are slim but have forward head posture because of smartphone use. When the neck shifts forward, it can cause problems in various parts of the body, but one of the most common is a double chin. Think of the muscles around our neck as a “laundry drying rack.” Towels (skin and fat) hanging on a straight, upright rack (the neck) stay neatly stretched out. But what happens if the rack tilts forward like in forward head posture? The towels sag downward and bunch together. That is the real double chin we see!

Why does forward head posture create a double chin?
1> Weakening of the platysma
At the front of the neck is the platysma, a broad muscle that runs from the jaw to the collarbone. When you have forward head posture, this muscle becomes abnormally stretched and loses strength. As the muscle loses its elasticity, it can no longer support the fat and skin above it, which then sag downward.
2> Stagnation of lymphatic circulation
When the neck bends forward, the surrounding blood vessels and lymphatic vessels get compressed. Just like water pooling when a drain is clogged, waste products from the face do not flow out properly and accumulate under the chin, creating a vicious cycle where “swelling” becomes “fat.”
3> Position of the tongue muscles
People with forward head posture usually have their tongue resting low instead of against the roof of the mouth. When the muscles at the base of the tongue weaken, the space under the chin becomes looser and makes the double chin stand out even more. Developing the habit of keeping the tongue firmly against the roof of the mouth is also one way to make the jawline look better.
Bellevue Clinic staff before & after
But changing habits and body type is not easy. That’s why many people turn to lifting treatments for help. However, the moment you open a search engine and type in ways to get rid of a double chin, it can get overwhelming. “I heard InMode is good for double chins, but doesn’t it leave a lot of bruising? What’s ONDA? It has a pretty name, but I don’t really know much about it... Does it work?” Today, Bellevue will neatly organize this 고민 for you. Let’s compare the two major treatments for double-chin reduction, the “InMode camp” vs. the “ONDA camp,” without any rank insignia on!

InMode: “Burn the fat and kick it out”
First, let’s take a look at InMode, the veteran of the lifting world. If you want to describe InMode simply, it’s like an “overly passionate tiger teacher.” A powerful leader in radiofrequency lifting, InMode first suctions the skin tightly (negative pressure), then delivers radiofrequency energy to hit fat cells hard. At the end, it uses electrical stimulation to punch holes right through the fat cells. It’s the type that directly says, “Get out of here!” That’s why one of InMode’s strengths is that the results are very clear. In particular, it delivers satisfying results for people who have a bit more fullness and want to “burn away all my fat.”
But tiger teachers are scary. Because it suctions the skin, it can leave large bruises after the procedure, like purple cupping marks. If you have an important meeting or a date coming up, you’ll end up needing downtime and covering up with a mask. And that hot sensation... you have to repeat to yourself a hundred times, “Beauty is pain.” That’s InMode’s downside.

ONDA: “I’ll seep in smartly”
Next is the trending ONDA lifting treatment. ONDA can be compared to a “quiet but powerful IT genius.” Its principle is based on microwaves. ONDA uses not radiofrequency but microwaves. Why is that revolutionary? While radiofrequency heats the skin surface from the outside in, ONDA keeps the skin surface cool and delivers energy only to the inside. It feels less like standing under the blazing summer sun (InMode) and more like being under a cool air conditioner while focusing energy with a magnifying glass on a specific spot.
So ONDA’s advantages are no pain, no bruising! First of all, it doesn’t hurt. Many people even ask, “Was it already over?” And most importantly, it doesn’t cause bruising. Even if you put on makeup right after the procedure and go meet a friend, people will say, “Your face looks so good today,” not, “Where did you get treated?” Along with fat breakdown, the immediate tightening effect that firms up loosened collagen is so satisfying right after treatment that it feels like heaven when you look in the mirror.

Bellevue’s 1:1 personalized guide (who should choose what?)
Alright, now I’ll help you decide what to choose. Bellevue Clinic respects your lifestyle!
| Category | InMode | ONDA |
|---|
| Analogy | A “flame diet” that burns fat | “Smart shaping” that melts fat |
| Pain | “Ah... it’s hot! It tingles!” | “Oh... it feels cool and warm?” |
| Marks (bruising) | Visible signs of treatment for about 3–7 days | Confidently low-profile, even immediately after treatment |
| Recommended for | People with thick under-chin fat who tolerate pain well | People who fear pain and need to return to daily life right away |
| Age group | Strong fat destruction for people in their 20s and 30s | All age groups (tightening + fat reduction at the same time!) |

Why Bellevue Clinic?
Actually, no matter how good the machine is, who handles it matters most. With ONDA lifting, the depth of energy delivery changes depending on how the handpiece is moved. Bellevue Clinic does not use a one-size-fits-all face copy-and-paste approach. Is the left side of the jaw more sagging? Then we target that area more intensively. Do you have a severe double chin but want to preserve your cheeks? We calculate your skin thickness and fat distribution and perform the treatment with the kind of precision a chef uses when carefully controlling the doneness of a steak.

So your jawline can become art...
At Bellevue Clinic, InMode is also good, but these days we recommend ONDA more often. We want to show that lifting can also be “healing.” If you’ve been hesitant to get lifting because of painful, bruised memories, now block those memories cleanly, like an ex-boyfriend. Because now you have ONDA, which is more refined, more comfortable, and more certain. Even now, your hidden V-line is sending a signal: “I’m ready to come out!” ^^
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