Why the cause matters
A lower face can look wide, round or soft for several reasons. The most familiar is an enlarged chewing muscle, but it is not the only one. A short chin, a soft jawline, descended tissue and fat can each create a similar impression.
Because of this, a single treatment may not meet your goal. Jaw BTX cannot help fat, and filler cannot narrow a muscle. A careful plan names the structures involved, ranks them, and treats only those that matter. This guide is general information, and your plan depends on an examination.
Face slimming Singapore: the five structures
| Structure | How it is checked | Options that may fit |
|---|---|---|
| Jaw angle and masseter | Clench test. A firm bulge suggests muscle | Jaw BTX |
| Chin | Read in profile against the nose and lips | Chin filler placed on bone |
| Jawline | A soft or undefined border from bone resorption, fat descent or natural anatomy | Hyaluronic acid filler, once laxity is assessed |
| Laxity and jowls | Pinch and recoil | VF Lift or HIFU |
| Fat | Pinchable fat at the jowl or under the chin, or the deep buccal fat pad | Time Freeze Laser LCLR® Sculpting mode for compact fat |
Jaw BTX for the masseter
Botulinum toxin is injected into the lower masseter to reduce contraction. With less work, the muscle gradually loses bulk. Dosing is set per side to the muscle size. The first dose is conservative, placed at two or three points, and reviewed at two weeks. Units are not interchangeable between products. Chewing usually feels normal, although it may tire more quickly for a period. A treated muscle can rebuild if clenching continues, so habits matter. Our jaw BTX guide explains this in more detail, including who should avoid it.
Beyond the masseter
Hyaluronic acid is used for the jawline. For the chin, hyaluronic acid, calcium hydroxylapatite or polycaprolactone is chosen at assessment.
Monopolar radiofrequency on Volnewmer, with Sculpt and Restore modes.
Focused ultrasound on Ultraformer MPT, where tissue depth suits it.
Sculpting mode for compact superficial fat, with dual-wavelength laser heat for dermal tightening.
A separate assessment looks at fat, skin, muscle, chin shape and glands.
How a staged plan is ordered
Why filler is not the first step for laxity
It is tempting to sharpen a blurred jawline with filler. Where laxity is the cause, filler can add weight to tissue that is already descending. That is why descended tissue is addressed first, and why volume is left until later. Filler can also overfill, migrate or form lumps. Our jowls guide explains how laxity is assessed. If you are unsure which applies to you, the V shape face page sets out the planning approach.
Superficial fat or deep fat
Two kinds of fat are often confused. Superficial fat at the jowl or under the chin can be pinched, and compact deposits may suit a laser Sculpting mode. The deep buccal fat pad sits within the cheek and cannot be reached by these treatments. A fat-dissolving injection is a separate discussion, and it applies only to confirmed fat under the chin.
Who it may suit
If you accept a staged, assessed plan.
A narrower jaw angle and tapering chin, with masseter and chin assessed.
A defined, angular jawline, with chin and jawline structure assessed and the masseter often left alone.
Who should wait or be referred
Pregnancy or breastfeeding, an active skin infection, or the recovery window of recent lower-face treatment elsewhere.
Neuromuscular conditions, allergy, certain medicines and bleeding tendency are reviewed before injections.
Marked skeletal discrepancy or bite problems.
Referred to a plastic surgery specialist.
What face slimming cannot do
No injectable or device changes jaw bone width. The deep buccal fat pad cannot be reached or removed by these treatments. It does not change with clenching and, for most people, does not change with weight loss. Removal is surgery, referred to a plastic surgery specialist, and cannot be reversed. Lifting does not replace lost volume or reduce a full fat pad. A short chin caused by bone needs filler on bone, or referral. Differences between the two sides are mapped at assessment, and treatment does not hide them completely.
Risks, recovery and fees
Risks depend on the treatment. After jaw BTX, tenderness, small marks or a bruise are common. An uneven smile or paradoxical bulging is less common, and difficulty swallowing is rare and urgent. After filler, expect mild swelling and tenderness, and avoid massage unless advised. Skin turning white, grey or mottled, or worsening pain after filler: urgent assessment by the injector or A&E now. Radiofrequency and ultrasound use heat, with warmth and mild redness that settle, and sun protection continues. Masseter reduction is temporary, filler absorption varies, and lifting results are reviewed over time, so no fixed duration can be given. Fees are not published. They depend on the structures involved, the number of methods, whether work is staged or combined, and how much of the lower face is treated. They are set out at consultation, and no figure is quoted before assessment.