Fat-Dissolving Injections (Fat Dissolve Injection)

Fat-dissolving injections (Fat Dissolve Injection), often called fat injections / Meso Fat, deliver fat-managing compounds into the fat layer of specific areas such as the chin, jowls, double chin, or jawline to make the face and contour look smoother and firmer. They are generally done as a multi-session course, with changes appearing gradually, and work best alongside a controlled diet and exercise. The injection and assessment are performed by a doctor. Results vary by individual.

What are targeted fat-dissolving injections?

Targeted fat-dissolving injections are a treatment in which fat-managing compounds (such as those in the Deoxycholic Acid family and ingredients that help stimulate fat metabolism) are injected into the subcutaneous fat layer where fat collects in clusters. The compounds help the fat cells in that spot be broken down and gradually cleared through the body’s natural processes. They suit localized fat that is hard to reduce through diet or exercise alone, and offer a non-surgical way to refine the facial contour.

What can fat-dissolving injections help with?

This treatment is designed to manage “localized” fat deposits — not overall weight loss. It can help with:

• Dissolving fat under the chin and jowls — reducing the fullness beneath the chin that makes the face look round
• Managing a double chin — refining the jaw and neckline to look sharper
• Refining the jawline — making the jaw and facial contour look slimmer and more defined
• Managing localized body fat — such as the buttock cheeks, upper arms, or other areas as assessed by your doctor

Popular areas for fat-dissolving injections

Each area has a different amount and thickness of fat, so the doctor assesses the suitable number of sessions and amount of compound on an individual basis. The table below shows the areas clients most commonly treat and the approximate number of sessions:

The actual number of sessions depends on the nature of the fat, your goals, and individual response. Sessions are generally spaced about 3–4 weeks apart, as recommended by your doctor.

How many CC per area for fat-dissolving injections?

Many people wonder how many CC of compound each area takes. In practice, the amount is “adjusted to the area and the thickness of the fat layer” — it is not a fixed number that is the same for everyone. Small areas such as the chin/jowls usually use a smaller amount per session than broad areas like the upper arms or abdomen. The doctor assesses the suitable, safe amount for you on the consultation day. Note that “using more CC than necessary” does not always mean a better result, and may cause unnecessary swelling. Planning the amount and number of sessions with your doctor matters more than simply comparing CC figures.

How fat-dissolving injections work

The fat-dissolving compound acts on the walls of fat cells in the injected area, so the fat cells in that spot are gradually broken down. The body then clears them through the lymphatic system and natural metabolism over several weeks, so changes appear gradually and become clearer once the full course is complete. Note that fat-dissolving injections only manage the fat in the injected area — they do not replace overall weight loss. Combining them with a controlled diet and exercise therefore helps the result look better and last longer.

How many sessions until you see results?

Generally this requires an ongoing course of several sessions — it is not a one-and-done treatment. Results appear gradually over the weeks following each session:

The number of sessions and the time to see results depend on the area, the amount of fat, the type of compound used, and individual response. Your doctor will plan the course and reassess at each session.

Do results last? Can fat come back?

Once the full course is complete, the fat cells in the injected area that have been broken down are gradually cleared by the body. However, the results of fat-dissolving injections do not last forever on their own. If your body weight increases or your habits are not maintained, the remaining fat cells can enlarge and cause fat to accumulate again. Keeping the result looking good over time therefore relies on a controlled diet and regular exercise, along with following the follow-up plan your doctor recommends. Results and how long they last vary by individual.

Do fat-dissolving injections hurt? Is there swelling?

During treatment you may feel mild stinging or tightness at the injection site, which is tolerable and brief. Afterward there is often swelling, redness, or bruising in the early period, especially under the chin. This swelling is a normal part of the treatment and gradually subsides within a few days to about 1–2 weeks, depending on the individual. Your doctor will give aftercare advice to help the swelling subside faster. If swelling is unusually severe or you have concerns, you can consult your doctor.

Fat-dissolving injections for the chin / jowls / double chin

The under-chin and jowls are the most popular areas clients treat, because this fat is hard to reduce through exercise and often makes the face look round or creates a double chin even when the overall body is slim. Fat-dissolving injections under the chin help the jaw and neckline look sharper and firmer. They are usually done as a course of 2–4 sessions, spaced as your doctor recommends. In the early period there may be swelling under the chin, which is normal, and results become clearer gradually with continued treatment. Results vary by individual.

Who is suitable for fat-dissolving injections, and who should avoid them?

Suitable for people with localized fat deposits such as the chin, jowls, or jawline, those who maintain a controlled diet and exercise but still find localized fat hard to reduce, and those who want a non-surgical option to refine the facial contour.

Should inform the doctor or avoid those who are pregnant or breastfeeding, those with an infection or wound at the treatment area, those with certain underlying conditions, blood-clotting problems, or a history of allergy to the components of the compound. The doctor takes a history and assesses suitability before every session. Note that this treatment manages localized fat — it is not a weight-loss method for people who are overweight overall.

What options are available for fat-dissolving injections at Onnyx Clinic?

We offer several fat-dissolving compounds to suit different types of fat, treatment areas, and budgets. Each one has slightly different strengths and suitability, and the doctor will help recommend the right one for you on the consultation day:

See all options and prices in the price table below. Pricing depends on the type of compound and the area treated.

The fat-dissolving injection process at Onnyx Clinic

1. Consultation and assessment — the doctor discusses your goals and examines the nature of the fat in the area you want to address
2. Choosing the compound and planning the course — determining the type of compound (Sisi, Neobella, or Bromi), the injection points, and the individualized number of sessions
3. Injection by a doctor — performing the treatment precisely in the designated area
4. Aftercare and follow-up appointment — providing care advice and scheduling the next session according to the course cycle

Are fat-dissolving injections safe?

This treatment is safe when assessed and injected by a doctor in a licensed medical facility, using a compound and amount suitable for each area. The side effects typically seen are mild and temporary, such as swelling, redness, bruising, or tenderness at the treated area, which usually improves on its own within a few days. The most significant risk is being treated by a non-doctor or with substandard products, because injecting into the wrong layer or area can cause undesirable effects. Choose a medical facility with doctor supervision that uses compounds of clear origin.

How do fat-dissolving injections differ from liposuction?

Both manage localized fat, but the principle and suitability differ:

Your doctor will help assess which method suits the nature of your fat and your goals better.

Preparing before fat-dissolving injections

• Inform your doctor of any underlying conditions, medications, and allergy history
• Stop medications/supplements that may increase bleeding, as advised by your doctor
• Avoid alcohol before treatment, and arrive with the treatment-area skin clean
• Get enough rest, and plan for possible swelling in the first few days

Aftercare for fat-dissolving injections

• There may be swelling, redness, or bruising at the treated area in the early period, which is normal and gradually improves
• Avoid massaging or pressing hard on the treated area, unless your doctor advises otherwise
• Avoid high heat, saunas, and strenuous exercise during the first 24–48 hours
• Drink enough water, and maintain a controlled diet and regular exercise to help improve results
• Follow your doctor’s advice and attend your course appointments; if you have questions, you can consult your doctor

How much do fat-dissolving injections cost?

The price depends on the type of compound chosen (Sisi, Neobella, or Bromi), the area treated, and the number of sessions in the course. Because this treatment is done as a course, the doctor will assess and propose a plan suited to your goals and budget on the consultation day. See pricing by option in the price table below.

What is the difference between cheap and expensive fat injections? The difference in price usually reflects the type and quality of the compound used, its origin and registration, as well as the experience of the person performing it. Be especially cautious of prices that are unusually low, as they may reflect substandard products or products of unknown origin, which carry a risk of side effects. We recommend asking about the type of compound and requesting to see its Thai FDA registration before every treatment, and choosing a medical facility with doctor supervision.

Why choose fat-dissolving injections at Onnyx Clinic?

Assessed and injected by a doctor, with multiple compound options to suit each area, an individualized course plan, transparent pricing, and close before- and after-care, for results that look natural and are safe to medical standards. Results vary by individual, and we recommend combining treatment with a controlled diet and exercise.

Frequently asked questions about fat-dissolving injections

Are fat-dissolving injections and Meso Fat injections different? They refer to the same group of treatments — injecting a compound that helps manage localized fat deposits. The terms “Meso Fat” and “fat injections” are familiar names in Thailand. The compound used and its strengths differ from product to product.

Can fat-dissolving injections help with weight loss? No. This treatment manages “localized fat” that is hard to reduce — it is not a method for overall weight loss. People who want to lose weight overall should focus on a controlled diet and exercise.

How many days does the chin swell after fat-dissolving injections? In the early period there may be swelling or bruising, especially under the chin, which usually subsides gradually within a few days to about 1–2 weeks, depending on the individual. If swelling is unusually severe, you can consult your doctor.

How many sessions are needed? Is one session enough? Generally an ongoing course of several sessions is required. Results appear gradually and become clearer once the full course is complete — it is not a one-and-done treatment. Results vary by individual.

References

• Thai FDA (อย.) — fda.moph.go.th
• American Academy of Dermatology — aad.org
• DermNet — Deoxycholic acid in the treatment of submental fat — dermnetnz.org
• U.S. Food & Drug Administration — fda.gov