
A heavy lower face can come from muscle, fat, bone, a short chin or descending tissue. At IN Eternity Clinic on Orchard Road, Dr Sin Yong works out which before suggesting anything.
WhatsApp to Enquire →Key facts ↓A V-shape face depends on what is widening the lower face. An enlarged masseter responds to prescription muscle-relaxing injections; a short chin to chin filler; jowls and early sagging to lifting energy such as the VF Lift or HIFU; fat under the chin to microwave or radiofrequency contouring. Buccal fat and bone width need a different, sometimes surgical, conversation.
When the jaw widens on clenching and the bulge hardens under the fingers, the masseter is usually the cause. Jaw slimming explains the clench test and how a prescription muscle-relaxing injection reduces the muscle’s activity so that it becomes less bulky over weeks. The effect needs maintenance, and doses are kept conservative so that chewing and smiling feel normal.
For background, see the masseter injection guide and the face slimming guide. The same medicine is used differently for the neck and shoulders, on Nefertiti lift and shoulder slimming.

The buccal fat pad sits deep in the cheek between the chewing muscles, with extensions towards the temple and jaw. A fuller pad can give a rounder lower cheek, especially in younger faces. It is different from the superficial fat just under the skin, which is why treatments that reach one layer do little for the other.
Non-surgical. Energy-based treatment can reduce localised superficial fullness and firm the overlying skin. At IN Eternity Clinic the VF Lift – Vertical Facelift can be calibrated to reduce puffiness in the lower face, and Time Freeze Laser LCLR® treats zones such as the jowl and under the chin. Change is gradual and moderate.
Surgical. Buccal fat removal takes out part of the deep pad through an incision inside the mouth. It cannot be reversed, and because the face loses volume with age, a cheek that looks full at 25 may look hollow at 45. Dr Sin Yong will explain whether you are likely to benefit and, if surgery is the appropriate route, refer you for a surgical opinion.
“A wide lower face is a description, not a diagnosis. If the masseter is not the cause, I will not inject it.”
A chin that sits back makes the lower face look wider from the front and the neck fuller from the side. Adding projection and length with chin filler can narrow the look of the face without touching the jaw angle. The chin filler and V-shape guide and the jawline filler guide explain where filler is placed and how much is enough.
The overview V-shape face and jawline slimming describes how the main contributors to lower-face width are told apart.

Jowls form when tissue along the jawline descends, and slimming will not fix them. Lifting is the job of collagen-tightening energy such as HIFU, the VF Lift and Thermage, and of threads such as the Bliss Lift, described together on sagging face treatment.
Under the chin, fullness can be fat, loose skin, the platysma muscle or a short chin. Double chin causes and double chin treatment explain how each is matched to microwave, radiofrequency, focused ultrasound or chin support.
The clench test helps. If the angle of the jaw bulges and hardens when you bite down, the masseter is contributing. Bone width feels firm and unchanged whether you clench or relax, and fat feels soft and pinchable. Often several are present, and Dr Sin Yong checks each from the front and the side before planning anything.
No. Buccal fat removal is a surgical procedure that removes part of a deep cheek fat pad and cannot be undone. Jaw slimming injections relax the masseter muscle, which is a different structure, and the effect fades without maintenance. Energy treatments reduce superficial fullness. Each suits a different cause, which is why the cause is identified first.
The masseter softens gradually. Most people notice a change over several weeks, with the fuller effect usually seen at around two to three months. Because the muscle slowly regains activity, repeat treatment is typically planned some months later. Timing and dose are reviewed at follow-up rather than fixed in advance.
It can make the face look narrower and better balanced when the chin is short or set back, because projection and length change the proportions of the lower face. It does not reduce width at the jaw angle. Filler type and amount are chosen conservatively, and Dr Sin Yong often uses calcium hydroxylapatite for chin structure.
Mild to moderate jowling can be improved with collagen-tightening energy such as HIFU, radiofrequency or the VF Lift, with threads for some faces. These firm and lift gradually and need maintenance. Heavy jowls with significant loose skin usually respond better to surgery, and you will be told plainly if that is the case.
Cost depends on the cause being treated, the products or devices used, the amount needed and how many sessions are planned. A masseter-only plan differs from one that combines chin support and lifting. A written quote is given after assessment, and there is no pressure to book on the day.
IN Eternity Clinic, 9 Scotts Road, #12-01 Pacific Plaza, Singapore 228210. By appointment with Medical Director Dr Sin Yong. Monday to Saturday, 11am to 8pm. WhatsApp or call +65 8815 3008.
These sources describe mechanisms and general evidence. They are not a promise of any individual result; suitability is decided at an in-person assessment.