Face Slimming Treatment: Botox, Fat Melting or Lifting?

If you are searching for the best face slimming treatment, the honest answer is that it depends on which part of your face you want to change. A square jaw, a soft double chin and a sagging jawline can all make a face look wider, but each one needs a different tool.

This guide is written by BeauLife Clinic, an MOH-registered aesthetic clinic (KKLIU 1970/2019) operating since 2017. It compares the three routes side by side: what each one changes, what the trials found, when you will see the result, the downtime and the first-year cost in the Klang Valley. It does not replace a doctor’s assessment.

First, a dermatologist explains the most common ways to treat fullness under the chin, one of the three routes covered below.

1. What does a face slimming treatment actually change?

Quick Answer: A face slimming treatment changes one of three things: muscle, fat or loose skin. Botox shrinks a bulky chewing muscle, fat-dissolving injections such as Aqualyx fat removal or fat freezing reduce a small fat pocket, and lifting devices tighten skin that has started to sag. Each route is chosen for a different cause.

The three routes do not compete. A square jaw from a strong chewing muscle will not change with fat melting, and a double chin made of fat will not shrink with Botox. So the first question is “what is making the face look wide?” Our guide to jaw Botox for face slimming covers the muscle route in depth, and our chin fat removal guide covers the fat route.

2. Botox, fat melting or lifting: which suits your goal?

Quick Answer: Pick by the change you want to see. For a narrower lower face from the front, Botox usually leads. For a sharper chin-to-neck line, fat reduction leads. For a firmer jawline and less jowl, lifting leads. The Botox treatment page explains how a doctor tells a wide muscle from fat at the consultation.

Five steps help you arrive at your consultation with a clear plan:

1. Name one change. Write down the single change you most want to see, for example “a narrower jaw” or “no double chin in photos”.
2. Set your date. Count back from any event. Botox and lifting need about two to three months to show their clearest result; fat reduction can take longer.
3. Set a yearly budget. Decide what you can spend in the first year, not per visit, because Botox repeats and fat melting comes as a course.
4. Bring photos. Take a front, side and three-quarter photo in good light, relaxed and while clenching your teeth.
5. Ask for one route first. Ask the doctor which route alone would make the biggest difference, then decide whether a second route is worth adding later.

If you clench or grind at night, say so; our grinding teeth treatment guide compares jaw Botox with a night guard.

3. What do the studies show for each face slimming method?

Quick Answer: Each route has trial evidence, but each trial measured something different. Deoxycholate injections under the chin helped about two in three people against one in five on placebo. Fat freezing under the chin cut the fat layer by about 2 mm. Focused ultrasound improved lower-face laxity in about 58% on blinded review.

Three things stand out for anyone weighing the best face slimming treatment for their own face:

• Fat injections need a course. In REFINE-1, 55% had improved after two treatments and 75% after four, so one session is rarely enough.
• Lifting works less with more weight. The ultrasound study found no change in over half of people with a BMI above 30, which is why the doctor checks fat before skin.
• Botox evidence is strongest for muscle bulk. The 2026 review found consistent short-term benefit, but called for longer trials.

4. How long does face slimming take to show, and how long does it last?

Quick Answer: Jaw Botox narrows the face over two to four weeks and looks slimmest at about three to four months. Fat melting is judged eight to twelve weeks after the last session. Fat freezing builds over three to six months. Ultherapy Prime builds over two to three months and typically lasts 12 to 18 months.

Botox is fastest but fades as the muscle recovers; the masseter study by Choe and colleagues found thickness kept falling until about months three to four. Destroyed fat cells do not come back, so fat reduction lasts while your weight is steady. Plan by date:

• Event in six to eight weeks: Botox is the only route likely to show clearly by then.
• Event in three to four months: Botox or a single lifting session.
• No date in mind: any route, including a fat-reduction course.

5. How much downtime does each face slimming treatment need?

Quick Answer: Botox and the lifting devices usually need little or no time off. Aqualyx brings swelling and tenderness for three to five days. Fat freezing can leave numbness for a while. Each route also has its own rare risk, which the doctor should explain before you agree, per the Cooltech Define page and the trial reports.

Comfort differs too. In the lower-face ultrasound study, people rated treatment pain at about 5.7 to 6.5 out of 10, depending on the area. Fat injections sting for a few minutes and Botox feels like small pinches.

With an event within a week, pick a route without visible swelling. Our double chin fat melting injection guide covers the swelling stage.

6. How much does face slimming cost in the Klang Valley?

Quick Answer: In the first year, jaw Botox typically adds up to about RM 2,000 to 13,500 over two or three sessions. A three-session Aqualyx course starts from about RM 2,100. Lifting is usually one session: Ultherapy Prime RM 2,888 to 12,888 or DENSITY from RM 1,888. BeauLife gives an exact quote after a consultation.

Botox is cheap per visit but repeats, so its yearly cost can pass a one-off lifting session. Ultherapy Prime ranges widely because under the chin costs far less than a full face and neck. Our guide to Botox for face wrinkles shows the same yearly-cost logic for the upper face.

7. Can you combine Botox, fat melting and lifting?

Quick Answer: Yes, many faces have more than one cause, and the routes can be combined. A common order is to reduce fat first, then tighten any loose skin, with Botox for a wide jaw at any stage. The doctor spaces sessions so swelling has settled. Lifting options such as Thermage FLX skin tightening are often the final step.

Order matters: lifting skin over fat that is about to shrink wastes part of the result. The usual sequence:

• Fat first: finish the Aqualyx or fat-freezing course and wait for the result to settle.
• Skin next: assess the jawline again, then lift or tighten if needed.
• Muscle any time: jaw Botox works separately, so it can start early if the jaw is wide.

Many people need only one route.

8. Who should not have face slimming treatment, and how to choose a clinic?

Quick Answer: Wait if you are pregnant or breastfeeding, have an active skin infection, or are still losing weight. Choose an MOH-registered clinic where a doctor with a Letter of Credentialing and Privileging (LCP) assesses and treats you. Our guide to choosing an aesthetic clinic in Malaysia explains how to check.

Botox injections are on the list of procedures that need an MOH-qualified doctor (Malay Mail, 2025). At a good consultation the doctor will:

• Check muscle, fat and skin separately, with you relaxed and clenching.
• Tell you what a route cannot do, such as Botox for a double chin or fat melting for loose skin.
• Name the product or device and give a written first-year quote.

Our Botox leg slimming guide shows the same muscle-or-fat check on the calves. BeauLife has LCP-certified doctors at five Klang Valley branches: Bukit Jalil, Cheras, Puchong, Subang Jaya and Ampang.

9. The short version

The best face slimming treatment depends on the cause. Botox slims a wide jaw muscle and repeats once or twice a year. Aqualyx or fat freezing removes a small fat pocket for as long as your weight is steady. Ultherapy Prime, Thermage FLX or DENSITY tighten loose skin over months. Name the one change you want, match it to its route, and compare first-year costs, not single visits.

10. Frequently Asked Questions