InMode vs. Shurink: Which Is Right for You?
If you're weighing InMode against Shurink for your chin and jawline, the answer often comes down to one question: is your main concern fat, or is it sagging skin? Here's how the two treatments actually differ.
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If you've noticed your jawline isn't as crisp as it used to be, or a soft pocket of fullness has settled in under your chin, you've probably come across both InMode and Shurink while researching options. Both get pitched as non-surgical ways to tighten a sagging jaw, but ask two different clinics and you might hear "it's RF" from one and "it's HIFU" from the other — which doesn't exactly clear things up.
Here's the short version: both technologies use heat to trigger a collagen response, but the energy that creates that heat — and the layer of skin it reaches — is different. That difference is also why one tends to suit a fuller, fat-related double chin better, while the other leans toward a sagging, lax jawline. In this article, we'll cover how each technology actually works, how to tell which concern fits which treatment, and what the appointment and recovery look like from start to finish.
What's the Difference Between InMode and Shurink?
The short answer? InMode uses radiofrequency (RF) energy, and Shurink uses focused ultrasound, or HIFU — and that difference in energy type is what sends each one to a different layer of your skin.
Both technologies rely on the same basic principle: heat makes collagen fibers contract right away, and over the following weeks, your skin rebuilds new collagen in response, which is what gradually firms things up. Where they part ways is how that heat gets delivered.
InMode channels RF energy into the dermis and the fat layer just beneath it, warming a broader area at once. Shurink focuses ultrasound energy into a single, precise point deep in the dermis, creating a tiny zone of controlled heat at that exact spot rather than warming the surrounding tissue.
How Does Each Treatment Actually Work?
Because InMode's RF energy travels through the dermis and into the subcutaneous fat layer, it does double duty — tightening the skin itself while also affecting the fat layer that often contributes to a fuller, "double chin" look. A study on radiofrequency's effect on skin found that RF energy delivered to the dermis increases type I and type III collagen and measurably firms the skin, which is part of why results keep improving for weeks after a single session instead of showing up all at once.
Shurink works differently. Instead of warming a wide area, it converges ultrasound energy into a focal point deep in the dermis, creating a series of microscopic coagulation points along that layer. Because the energy is concentrated rather than spread out, the effect tends to be more targeted, which is why it's often the go-to when the concern is skin laxity rather than fullness.
HIFU, or high-intensity focused ultrasound, is the underlying technology behind Shurink — it concentrates ultrasound waves into a single point the way a magnifying glass concentrates sunlight.
InMode vs. Shurink at a Glance
Put side by side, the practical differences come down to where the energy lands and what kind of concern each one is built to address.
| Category | InMode | Shurink |
|---|---|---|
| Energy type | Radiofrequency (RF) | Focused ultrasound (HIFU) |
| Layer reached | Dermis and subcutaneous fat | Deep dermis |
| Best suited for | Fullness, fat-related double chin | Sagging, lax jawline |
| What it feels like | Steady, warming heat | Quick, pinpoint heat |
| Session length | About 20–30 minutes per area | About 20–30 minutes per area |
The table is a general guide rather than a fixed rule. Plenty of people end up using both treatments, just for different parts of the jaw and neck.
Which One Fits Your Concern: Fat or Sagging?
Before comparing brand names, it helps to get specific about what's actually bothering you. Is it a soft fullness under the chin that shows up in profile photos? Or is it more that your jawline used to look sharper, and the skin along it has started to soften and blur?
If fullness or a fat-related double chin is the main concern, InMode's reach into the subcutaneous fat layer tends to make more of a visible difference. If the jawline itself has lost definition — skin that's lax rather than full — Shurink's more concentrated approach to the deep dermis is usually the better starting point.
Skin sensitivity can factor in too. Some people prefer InMode's broader, warming sensation, while others find Shurink's more pinpoint feeling easier to tolerate in short bursts. Either way, the settings and depth still need to be adjusted person to person, so the final call is one to make with a provider who's actually examined your jawline in person.
What to Expect: Procedure, Sensation, and Recovery
Both treatments start with a topical numbing cream, and the appointment itself typically runs 20 to 30 minutes per area. During InMode, most people describe a steady, warming sensation, like a warm stone gradually working its way across the skin. Shurink feels different — more of a quick, pinpoint heat with each pulse, since the energy is landing at a single focal point rather than spreading out.
Right after either treatment, you might notice some redness or a lingering warm feeling, and that's normal — it usually settles within a few hours to a day. Downtime is minimal for both, and most people head straight back to their normal routine the same day.
Don't expect the full effect to show up overnight. Since the real change comes from new collagen accumulating over time, results tend to build gradually, and most people notice the most visible improvement somewhere around eight to 12 weeks after treatment. How long that improvement holds varies from person to person, so your provider is the one to ask about timing for a follow-up session.
Side Effects & Risks
Redness and mild swelling right after treatment are common with both InMode and Shurink, and they usually settle within a day. Some people notice a warm, slightly tender feeling along the jaw for a day or two afterward, which is also considered normal.
Less common but possible risks include small burns if the energy isn't calibrated properly, or temporary numbness or altered sensation along the jaw, since nerves run close to the treatment area. If you notice spreading redness, fever, unusual or worsening pain, or numbness that doesn't resolve within a few days, contact your provider or seek medical care right away rather than waiting it out.
This is one of the areas where provider experience matters more than which device is on the label. Someone who treats the jaw and neck regularly will know how to adjust depth and energy for your specific anatomy.
How Much Does It Cost?
Pricing for both InMode and Shurink varies quite a bit by clinic, how many areas you're treating, and whether you're booking a single session or a short series. Neither treatment is a one-and-done in most cases — plans are usually built around your specific concern rather than a flat, universal price.
Rather than guessing at a number that may not apply to your case, the more reliable route is asking directly during a consultation, where a provider can map out a plan based on what you actually need. Current offers are listed at /en/promotion.
The Bottom Line
- InMode uses RF energy that reaches the dermis and subcutaneous fat, making it a common pick for a fuller, fat-related double chin.
- Shurink uses focused ultrasound (HIFU) to target a precise point deep in the dermis, which tends to suit a lax, sagging jawline better.
- Both work by triggering collagen, so results build gradually over several weeks rather than appearing immediately.
- Many people end up using both, just for different concerns along the jaw and neck.
Like any procedure, both come with trade-offs — some discomfort, a wait for results, and the need for a provider who can judge your skin and fat layer accurately. Ultimately, the choice depends on your skin, your goals, and your budget, and a consultation is the best way to find out which one actually fits your jawline. BeautyStone is a dermatology clinic in Seoul's Hapjeong neighborhood — see current offers at /en/promotion.
Frequently Asked Questions
Q1. What's the difference between InMode and Shurink?
InMode uses radiofrequency (RF) energy, while Shurink uses focused ultrasound (HIFU) — and that difference in energy type sends each one to a different layer of skin. InMode warms a broader area across the dermis and fat layer, while Shurink targets a single precise point deep in the dermis.
Q2. Is InMode or Shurink better for a double chin?
InMode tends to suit a fuller, fat-related double chin better since its RF energy reaches the fat layer beneath the dermis as well as the skin itself. Shurink leans more toward a sagging, lax jawline, since its focused ultrasound concentrates on tightening deep dermal tissue.
Q3. Does InMode or Shurink hurt more?
Sensation differs by technology — RF from InMode is often described as a warming heat, while HIFU from Shurink can feel like brief, sharp pinpoints at the focal depth. Comfort varies by person and treatment area, so ask your provider what to expect for your session.
Q4. How long does it take to see results from InMode or Shurink?
Both trigger a gradual collagen response, so visible firming typically builds over the weeks following treatment rather than showing up immediately. Cost and the number of sessions needed vary by clinic and by how much correction your jawline needs, so a consultation is the best way to get a personalized estimate.
