Fat-dissolving injections (Meso Fat) for double chin, cheeks, upper arms and abdomen, by a doctor
Deoxycholate-based fat-dissolving agents break down the walls of fat cells at the injection site. Suited to small pockets of fat such as a double chin, full cheeks, upper arms and lower abdomen. 2–4 sessions 4–6 weeks apart, with 3–7 days of swelling.
What fat-dissolving injections are and how they work
Fat-dissolving injections (Meso Fat) deliver a fat-dissolving agent directly into the fat layer beneath the skin. The main agent is deoxycholic acid, a bile acid the body itself produces to digest fat. Injected into the fat layer, it ruptures the walls of fat cells, and the destroyed cells do not return. The body takes 4–6 weeks to clear the debris through the lymphatic system and liver, so the fat in the area thins gradually. Thai FDA-registered products the doctor may choose include Kybella (Belkyra), phosphatidylcholine/deoxycholate (PPC) formulas and lipolytic formulas with added agents such as L-carnitine and caffeine. The doctor selects according to the thickness of the fat and the area, and opens the vial in front of you before injecting.
Treatable areas and what to expect
| Area | Suits | Typical sessions | Notes |
|---|---|---|---|
| Double chin (submental) | Fat under the chin thick enough to blur the jawline, with skin still firm | 2–4 sessions | Visible swelling for 3–7 days. Results clear after the second session |
| Full cheeks / lower cheek fat | A round face caused by fat, not the jaw muscle | 2–3 sessions | Small amounts, with care to avoid asymmetry |
| Jowls | Fat sagging at the sides of the chin | 2–3 sessions | If skin laxity is also present, HIFU or RF should be added |
| Upper arms | Fat at the back of the upper arms | 3–4 sessions | A larger area, needing more product |
| Lower abdomen / waist | A fat layer no thicker than 3–4 cm that can be pinched | 3–4 sessions | For small pockets only. Larger areas should consider Cool Shape or liposuction |
| Knees / inner thighs | Small pockets that exercise does not shift | 2–3 sessions | Modest reduction; keep expectations realistic |
On the day
After injection
Not for people who are significantly overweight (BMI above 30), who should lose weight or consider device-based fat reduction first; very loose skin, because once the fat is gone the skin may sag further; an infection or wound at the injection site; pregnancy or breastfeeding; severe liver or kidney disease; or swallowing or nerve problems in the neck. Common side effects are swelling, bruising, numbness and temporary firm lumps. Rare ones are a temporary drooping mouth corner from the product spreading to the marginal mandibular nerve (usually improving within 4–6 weeks) and skin ulceration if injected too superficially. A doctor who understands the nerve anatomy and injects in the correct layer reduces these risks
Related services
Prices
| Fat-dissolving injections, double chin, 1 session Product by the amount used, numbing cream, cold compress | [ ] |
| Fat-dissolving injections, both cheeks, 1 session | [ ] |
| Fat-dissolving injections, body, per 10 ml Upper arms, abdomen, thighs | [ ] |
Frequently Asked Questions
How do fat-dissolving injections differ from Cool Shape?
Injections suit small areas and the face, where the amount can be adjusted precisely. Cool Shape suits larger areas that fit into the applicator, such as the abdomen, waist and thighs. Both reduce fat by around 20–25% per session in the treated area.
Will the fat come back?
Destroyed cells do not return, but the remaining fat cells can enlarge if you gain weight, so weight control is still needed.
Can I go straight back to work?
Yes, but a double chin swells noticeably for 3–7 days. Many people choose a Friday or a period without important engagements. Cheeks swell less than the chin.
How many sessions?
Usually 2–4, spaced 4–6 weeks apart. Thinner fat may need only 2. The doctor assesses after seeing the result of the first session.
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