What "Double Chin" Actually Is (Three Different Problems)
A double chin is a visible label, not a single problem. Underneath that label, three different tissue changes can produce the same appearance. The treatment that works for one of them is often useless for the other two, which is why two people walking out of two different Melbourne clinics with the same complaint can end up with completely different bills and completely different results.
1. Submental fat. A pad of subcutaneous fat sits between the chin and the hyoid bone, just under the skin and just on top of the platysma muscle. Genetic predisposition, weight, and age all influence how much fat sits there. Submental fat is the cause most people picture when they hear "double chin." It responds to fat-targeting treatments: surgical liposuction, deoxycholic acid injection, and cryolipolysis. Skin tightening will not move it. Muscle stimulation will not move it.
2. Skin laxity. The dermis loses collagen and elastin gradually from the early 30s and dramatically after menopause. Women lose roughly 1.0 to 1.5 percent of skin collagen per year before menopause, and up to 30 percent of types I and III collagen disappears in the first five years afterward. Loose skin under the chin can mimic the visual signature of a fat pad even when very little submental fat is present. Liposuction on a skin-laxity double chin typically makes it worse, because removing the underlying fat leaves the loose skin envelope with nothing to drape over. Skin tightening is the right answer here.
3. Platysmal slackening. The platysma is the broad sheet of muscle that fans across the front of the neck from the lower jaw down to the collarbone. With age it loses tone, and two visible signatures appear: the loss of a clean angle between the under-chin and the front of the neck, and vertical "neck cords" where the slack edges of the muscle become visible. Most people over 45 have some component of this regardless of how much fat or skin laxity they have. The platysma is also the layer surgeons reposition during a neck lift, and it is the layer almost no non-surgical treatment touches. Direct muscle stimulation is the only non-invasive option here.
In practice, most adults over 40 have a mix of all three. The right treatment, and therefore the right cost, depends on which one is the dominant component for your face.
The Melbourne 2026 Cost Spectrum
Here is the honest 2026 double chin removal cost spectrum in Melbourne, sorted from the entry point upward. Each line is a market estimate based on published pricing across multiple Melbourne clinics in May 2026, not a Kaizen Therapy quote. Treat the numbers as ranges. Individual clinics vary above and below depending on equipment, location, and the practitioner.
| Option | What it treats | Typical Melbourne cost | Recovery |
|---|---|---|---|
| HIFU (single session) | Skin laxity | $199 to $550 | None |
| HIFU (full course) | Skin laxity | $400 to $1,500 | None |
| WonderFace 6-Week Program | Skin laxity + platysma muscle | $1,699 | None |
| CoolSculpting CoolMini | Submental fat | $1,800 to $2,500 | 1 to 2 weeks of swelling |
| Belkyra (deoxycholic acid) | Submental fat | $1,800 to $6,000 | 1 to 2 weeks of swelling per session |
| Chin liposuction | Submental fat (surgical) | $4,000 to $8,000 | 1 to 2 weeks |
| Neck lift surgery | Fat, skin, platysma muscle | $35,000 to $40,000 | 4 to 6 weeks |
| Lower facelift + neck lift | Comprehensive lower face | $45,000 to $70,000+ | 4 to 6 weeks |
The cheapest line in that table is a single HIFU session, which is enough on its own only if your double chin is a pure skin-laxity problem at its earliest stage. The most expensive line is a comprehensive lower facelift with neck lift, which is the right answer only for severe jowling with redundant skin and platysmal banding. Everything in between is where most of this article lives, because most adults over 35 have some mix of all three.
Surgical: Chin Liposuction and Neck Lift
The strongest option at the structural end is surgery, and the surgical category itself splits into two very different procedures.
Chin liposuction (submental liposuction)
A surgeon makes small incisions under the chin and behind the earlobes, threads a cannula through the fat layer, and removes the fat directly. Melbourne pricing typically starts around $4,000 and runs to $8,000 depending on surgeon and facility. Recovery is one to two weeks of compression garment wear and visible swelling. The fat is removed permanently, but skin laxity is not addressed, and the procedure can make a skin-laxity double chin look worse rather than better. Liposuction is the right tool only when there is a clear submental fat pad and the skin envelope is still tight enough to retract over the new contour.
Neck lift surgery
A more comprehensive procedure that addresses fat, redundant skin, and the underlying platysma muscle in one operation. The surgeon repositions the platysma (a procedure called platysmaplasty), removes excess skin, and may include liposuction. Melbourne pricing is significantly higher: $35,000 to $40,000 all-inclusive at established practices. Recovery is four to six weeks of visible bruising and swelling, with full settling at three to six months. Combined with a lower facelift, the bill rises to $45,000 to $70,000 or more. This is the right tool for severe, longstanding double chin with skin redundancy and visible platysmal banding.
Both surgical options are permanent. Both involve general anaesthetic risk, downtime measured in weeks, and meaningful scarring (usually well-hidden but present). Medicare does not cover cosmetic procedures.
Injectable: Deoxycholic Acid (Belkyra)
Belkyra is the brand name for deoxycholic acid, a naturally occurring bile acid that destroys fat cells when injected directly into a fat pad. It is the only fat-dissolving injection currently approved by the TGA for moderate-to-severe submental fullness, and it is registered as a Schedule 4 prescription medicine in Australia. Other fat-dissolving products on the Melbourne market (Aqualyx and similar) are off-label or compounded and sit outside the TGA registration.
Pricing per session ranges from $900 to $1,800 depending on how many vials the practitioner uses. Each vial covers a defined area, and most chins need one to two vials per session. Most patients need two to four sessions spaced six to eight weeks apart, which puts the total course at $1,800 to $6,000.
The mechanism is fat-only. Deoxycholic acid does nothing for skin laxity and nothing for the platysma. It produces real fat reduction, but the post-injection experience is uncomfortable: most patients see one to two weeks of localised swelling, bruising and tenderness after each session, and the result builds gradually over the following months as the destroyed fat cells clear.
Belkyra earns its place when the cause is clearly submental fat, the skin still retracts well, and the patient wants a non-surgical, non-energy path. That combination is common and it is a legitimate fit. It is the wrong option when skin laxity or muscle slackening dominates the picture, because both will become more visible once the fat pad is reduced.
Fat Freezing: CoolSculpting CoolMini
Cryolipolysis cools subcutaneous fat to a temperature that crystallises and destroys fat cells while leaving overlying skin intact. CoolSculpting is the most familiar brand name, and the CoolMini applicator is the small-area version designed for the submental pocket.
Melbourne pricing for a single CoolMini submental treatment is around $900 with two applicators (one applicator covers a 9 by 3 cm area, and most chins need both applicator positions). One to two treatment cycles are typical, putting most plans at $1,800 to $2,500. Sessions are 25 to 35 minutes per applicator.
Like Belkyra, the mechanism is fat-only. Skin laxity and muscle tone are unchanged. Visible results take two to three months as the cooled fat cells clear. CoolMini has a reasonable safety profile but a recognised rare complication called paradoxical adipose hyperplasia, where the treated fat area enlarges rather than shrinks. Published incidence sits at around 0.05 to 0.4 percent, and the complication typically requires surgical correction.
CoolMini is fair value for a clear submental fat pad in someone with good skin and no significant muscle component. It will not move loose skin or vertical neck cords.
HIFU: High-Intensity Focused Ultrasound
HIFU devices, of which Ultherapy and Ultraformer are the two best-known names, deliver focused ultrasound energy at fixed depths of 1.5, 3.0 and 4.5 millimetres. The 4.5 mm depth reaches the SMAS layer, which is the same connective-tissue layer surgeons reposition during a neck lift. The energy creates small controlled coagulation zones that trigger collagen contraction and remodelling.
Melbourne pricing varies dramatically. Promotional single-session pricing for the submental zone starts as low as $199 at some clinics. Standard pricing sits between $400 and $550 per submental session at most established practices, and a course of one to three sessions runs $400 to $1,500 depending on coverage and clinic.
The mechanism is skin-only. HIFU stimulates collagen contraction in the dermis and SMAS connective tissue, which produces measurable lift in the jaw and submental area. A 2024 three-dimensional study of HIFU-treated faces recorded an average 2.90 mm lift in the jowl area with patient satisfaction above 78 percent. The effect peaks at three months and is generally maintained out to six to twelve months, with some studies reporting durability at eighteen months.
HIFU does not destroy fat cells. It does not touch the platysma. It is the right call when the dominant cause is loose skin under the jaw, the fat pad is small or absent, and the patient wants zero downtime.
WonderFace: EMS + RF at Kaizen Therapy
We run WonderFace at Kaizen Therapy because it is the only non-surgical option that targets the under-chin and jawline through two mechanisms in the same 25-minute session. It covers three programmed treatment zones, submaxillary (under-chin and jaw), frontal (forehead and brow), and zygomatic (cheek and nasolabial), but for the double chin reader, the submaxillary zone is the one that matters.
The bipolar radiofrequency component heats the dermis to 42 to 44 degrees Celsius, penetrating up to 2 cm. That heat drives neocollagenesis and neoelastinogenesis, which is the same dermal-tightening mechanism HIFU and RF microneedling pursue through different energy. The synchronised neuromuscular emissions component then delivers approximately 1,500 controlled contractions to the SMAS-layer muscles, including the platysma. That is the muscle layer almost no other non-surgical option reaches, and it is the layer most responsible for the loss of the under-chin angle and the appearance of vertical neck cords.
Most adults over 40 sit in this skin-plus-muscle profile rather than the pure-fat profile. Submental fat alone, with firm skin and good platysma tone, is the typical pattern in the late 20s and early 30s. By the mid-40s the dermis has lost meaningful collagen and the platysma has lost meaningful tone, and the visible double chin reflects all three layers at once. That is the profile WonderFace was built to address, and it is a common one by mid-life.
- 200+ subjects across 8 published WonderFace studies in 7 countries
- 4 of 8 studies specifically cover double chin and submental fat
- 70% jawline definition improvement (85-subject Perth trial)
- Up to 50% reduction in wrinkle depth in clients aged 35 to 50
- Validated across Fitzpatrick I to V, ages 25 to 70
- No serious adverse events recorded across any of the 8 studies
Pricing at Kaizen Therapy is a single program rather than per-session, because the published evidence on results lives in the cumulative-course data:
- 6-Week Facial Rejuvenation Program: $1,699. 12 WonderFace sessions delivered twice weekly across six weeks, with a comprehensive skin and facial muscle assessment, progress photos at weeks 2, 4 and 6, a skincare optimisation guide, one bonus maintenance session, and a satisfaction guarantee. Available as a payment plan at $283 per week for six weeks.
- Ongoing maintenance from $199 per month. Once the program completes, monthly memberships maintain the result. Tiers run from $199/month for one session to $999/month for weekly sessions, with no lock-in.
If you want to see before-and-after comparisons across our face programs, our results gallery is the most complete reference we hold publicly. The full breakdown of all WonderFace program tiers and maintenance memberships lives on our pricing page.
WonderFace is the right answer when the visible double chin reflects a combination of skin laxity and platysmal slackening, and when the fat component is mild or absent. It is not a fat-targeting treatment. For a clear submental fat pad with firm skin and good muscle tone, Belkyra or CoolMini will produce a more dramatic result. For everything else along the spectrum that involves the muscle layer or the dermis, WonderFace is the only non-surgical option that addresses both layers in one session.
Not sure which kind of double chin you have?
Book a free 15-minute in-person assessment at Kaizen Therapy in Bentleigh. We will look at your skin, the muscle activity underneath, and the visible profile, and tell you honestly which category makes sense, including the categories we do not run ourselves.
BOOK FREE ASSESSMENT →What About Buccal Fat Removal?
Buccal fat removal turns up in double chin search results because the two procedures share the words "fat" and "face," and that is where the similarity ends. Buccal fat removal is a surgical excision of the Bichat fat pads in the cheeks, designed to hollow the mid-face and produce a more sculpted look. It is a different anatomical area, a different procedure, and a different intent.
Melbourne pricing for buccal fat removal sits at $4,000 to $8,000, similar to chin liposuction but for an entirely different purpose. If your concern is under-chin fullness, buccal fat removal is the wrong tool. If your concern is rounded cheeks and you want a more chiselled mid-face, buccal fat removal is on the table, but the long-term aesthetic risks (over-hollowing as the face naturally loses volume in later decades) deserve a separate conversation with a plastic surgeon.
How to Reduce a Double Chin: Matching the Treatment to the Cause
The single most important question to answer before spending anything is which of the three causes is dominant. Here is the rule of thumb that holds for most adults.
If the cause is submental fat, with firm skin
Belkyra, CoolMini, or chin liposuction. All three are fat-targeting. The choice between them depends on tolerance for needles versus surgery, and on how much fat is present. Light-to-moderate fat suits Belkyra or CoolMini; substantial fat suits liposuction.
If the cause is loose skin, with no real fat pad
HIFU is the most cost-effective single-mechanism option. Bulk-heating RF or RF microneedling are alternatives in a similar range. Skip the fat-targeting treatments entirely; removing fat where there is little fat to begin with leaves the skin envelope worse off.
If the cause is muscle slackening plus skin laxity, with little or no fat
WonderFace is the only non-surgical option that addresses both layers. HIFU and RF microneedling tighten the skin component but leave the platysma untouched, and the muscle component is what produces the loss of a clean under-chin angle.
If the cause is a combination of all three
The structured choice is sequential treatment: address the dominant component first, reassess, then add the second mechanism if the result is incomplete. WonderFace is often the most efficient starting point in this group because the dual mechanism reduces the chance of a partial result. Talk to a practitioner who is willing to refer you elsewhere when their tool is not the right one.
If the cause is severe, with redundant skin and visible platysmal banding
This is plastic surgeon territory. Non-surgical options will produce subtle improvement and waste your money relative to the result of a properly executed neck lift. We will say so honestly at your assessment if surgery is what we see, because the wrong recommendation costs you both money and time you could have spent on the right one.
Frequently Asked Questions
It depends entirely on which treatment is the right fit, and the spread is wide. As of May 2026, single-session HIFU promotional pricing starts around $199 in Melbourne. CoolSculpting CoolMini for the chin runs about $900 per treatment with two applicators, with most plans totalling $1,800 to $2,500. The WonderFace 6-Week Facial Rejuvenation Program at Kaizen Therapy is $1,699 for 12 sessions across six weeks. A course of fat-dissolving injections (deoxycholic acid, brand name Belkyra) usually totals $1,800 to $6,000 across two to four sessions. Surgical chin liposuction starts at $4,000 to $8,000 depending on surgeon and facility. A neck lift in Melbourne sits at $35,000 to $40,000, and a full lower facelift with neck lift can reach $45,000 to $70,000 or more. Choosing on price alone is the most expensive mistake people make in this category, because spending less on the wrong treatment is more expensive than spending appropriately on the right one.
Yes. They are the same drug under different regional brand names. The active ingredient is deoxycholic acid, which is a naturally occurring bile acid that destroys fat cells when injected directly into a fat pocket. The drug is sold as Kybella in the United States and Belkyra in Australia, the European Union, and Canada. Belkyra is registered with the TGA as a Schedule 4 prescription medicine for moderate-to-severe submental fullness in adults. Most patients need two to four sessions spaced six to eight weeks apart, with each session producing about a week of localised swelling and bruising as the destroyed fat cells clear.
Both produce real fat reduction in suitable candidates, and both leave skin laxity and muscle tone unchanged. The differences sit in cost, comfort, and rare complication risk. CoolMini is faster (one to two sessions of 25 to 35 minutes), more comfortable during treatment, and runs about $1,800 to $2,500 for a typical plan in Melbourne. Deoxycholic acid injection courses cost $1,800 to $6,000 over two to four sessions and produce more post-treatment swelling. CoolMini carries a small but recognised risk of paradoxical adipose hyperplasia (around 0.05 to 0.4 percent of cases), where the treated area enlarges rather than shrinks. Both options are wrong choices if the dominant cause of your double chin is loose skin or muscle slackening rather than excess fat.
HIFU is a single-mechanism treatment that targets the dermis and SMAS connective tissue with focused ultrasound, producing measurable skin tightening over three to twelve months per session. WonderFace is a dual-mechanism treatment that runs in the same 25-minute session: bipolar radiofrequency heats the dermis to 42 to 44 degrees Celsius for collagen and elastin remodelling, and synchronised neuromuscular emissions deliver about 1,500 controlled contractions to the SMAS-layer muscles, including the platysma. The platysma is the muscle layer most responsible for the loss of the under-chin angle and the appearance of vertical neck cords with age. HIFU does not address it. Four of the eight published WonderFace clinical studies specifically cover double chin and submental fat as a treated condition. WonderFace is the right choice when the visible double chin reflects a combination of skin laxity and muscle slackening; HIFU is the right choice when the dominant cause is skin laxity alone.
Most clients report visible change from session one or two, with significant change by session four. The Kaizen Therapy program is 12 sessions delivered twice weekly across six weeks at a flat $1,699, which puts the visible-results point at around week two of the program. Optional maintenance memberships from $199 per month extend the result. Your free 15-minute in-person assessment confirms the program is the right fit for your skin and the degree of muscle laxity we see, before anything is booked.
It depends on the mechanism. Fat-targeting treatments (chin liposuction, deoxycholic acid injection, CoolMini) destroy fat cells permanently. The remaining cells in the area can still expand with weight gain, so a permanent result requires a stable weight. Skin-tightening treatments (HIFU, RF, RF microneedling) produce temporary improvement that lasts six to eighteen months per course; ongoing collagen remodelling is required to maintain. WonderFace produces results that last several months post-course with monthly maintenance to extend further. Surgical neck lift is the most durable option and can last eight to twelve years. No non-surgical treatment is permanent, and any practitioner who tells you it is permanent is overselling the science.
