What causes a double chin (genetics vs weight vs ageing)
A double chin isn't always about weight. Three different mechanisms can create one — often in combination. Genetics: some people are simply born with a recessed chin or a fuller submental fat pad, regardless of body weight. Weight: extra body fat distributes under the chin and along the jawline. Ageing: the skin and SMAS layer slacken from your 30s onwards, so even slim clients develop a softer chin–neck angle as gravity wins. Understanding which cause is dominant matters, because it determines which treatment will actually work — surgical, injectable, fat-targeting, or skin-tightening.
HIFU vs Kybella vs CoolSculpting for the chin — which is best?
Kybella (deoxycholic acid injections) destroys fat cells under the chin but does nothing for loose skin — and many clients report swelling for 1–2 weeks per session, with 2–6 sessions needed. CoolSculpting Mini freezes fat in a 35–60 minute applicator cycle, but again, skin tightening is minimal and results can look uneven. HIFU is the only one of the three that addresses fat and skin laxity in the same treatment — important because most double chins are a combination problem. For pure fat reduction in a younger client with tight skin, fat-targeting may win. For anyone over 35 or with any skin laxity, HIFU is usually the smarter call.
How HIFU works on submental fat and skin at the same time
The UltraTherapy 15D MMFU device delivers focused ultrasound at multiple precise depths. The deeper passes (4.5mm) tighten the SMAS — the same fibro-muscular layer that surgeons lift in a facelift — instantly snapping the jawline cleaner. Mid-depth passes (3mm) disrupt a portion of the stubborn submental fat pad, prompting your body to clear those cells over the following weeks. Shallower passes (1.5mm) firm the skin itself. Three effects, one treatment, one device. The energy bypasses the surface of the skin entirely — there are no incisions, no needles and no recovery period. Treatment time for the chin and jawline is around 30 minutes.
HIFU double chin cost Brisbane
A targeted HIFU treatment for the double chin and jawline starts from $300, and is included in our $500 HIFU Face & Neck Lift if you want to address the full lower face in one go. Pricing includes consultation and aftercare — no surprise add-ons. Afterpay and Zip available. Full price list and combo savings on our HIFU cost Brisbane page, and the broader HIFU Brisbane technology overview explains the platform we use.
Real Brisbane double chin before & after
Real client results — sharper jawline definition, reduced submental fullness and visible neck-skin tightening — sit on our HIFU before and after Brisbane page. Photos are taken at day 1, week 4 and week 12 so you can see how the result builds. Read what 132 five-star clients say on our client reviews page. Many of our submental clients are over 40 and want to delay or avoid a neck lift — a journey covered in detail on our non-surgical facelift Brisbane page.
How many sessions, what's the timeline?
Most clients see meaningful jawline definition from a single HIFU session, with the lift visible from week 4 and peaking around week 8–12 as new collagen forms and the targeted fat clears. For more advanced submental fullness or stronger skin laxity, we recommend a 3-treatment program spaced 6–8 weeks apart — this stacks both the fat-reduction and the collagen-building effects for a sharper, longer-lasting result. After your initial program, a maintenance treatment every 12–18 months keeps the jawline crisp. We'll quote your exact plan in writing at your consult.
Book your HIFU double chin consult
Our clinic is at 88 Allen St, Hamilton QLD 4007 — minutes from the Brisbane CBD with easy on-site parking. Open Monday to Saturday.
Book an obligation-free consult — we'll assess your chin and jawline honestly, tell you whether HIFU is the right call (or whether something else would serve you better), and quote your exact plan in writing.
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