From our previous website’s article collection. Dates, prices and treatment information reflect the original publication period.
Quick Answer: Lipolysis injection (mesolipolysis) is a non-surgical body contouring method in which fat-dissolving substances such as phosphatidylcholine or deoxycholic acid are injected into localised fat deposits. It is effective on stubborn fat stores in the double chin, abdomen, flanks and inner knee area. An average of 3–6 sessions is required, with a 4–6 week interval between each session. Deoxycholic acid (Kybella®) is FDA-approved for submental fat. At Abel Beauty, a personalised injection map is prepared using calliper and ultrasound measurements.What Is Lipolysis Injection (Mesolipolysis)?
Lipolysis injection takes its name from the Latin term lipolysis, meaning "fat breakdown." The core principle is to disrupt the membrane of fat cells (adipocytes) using chemical agents, allowing the released fatty acids to be metabolised and eliminated from the body via the lymphatic system and bloodstream. This approach is also known as mesolipolysis or fat dissolving mesotherapy.
This method is not a direct alternative to surgical liposuction; however, it provides a clinically valid option for mild-to-moderate localised fat deposits, particularly where surgical approaches carry risk or the patient prefers a non-surgical route. Because it permanently reduces the number of fat cells (adipocytes), results demonstrate long-term durability as long as weight is maintained. At Abel Beauty, a personalised dosage protocol is prepared for each patient following calliper and ultrasound measurements of fat layer depth.
Adipocyte Anatomy and Fat Storage Physiology
Understanding regional fat accumulation requires a grasp of adipocyte biology. White adipose tissue (WAT) is an active endocrine organ involved in energy storage, hormone signalling and thermoregulation. Adipocytes contain large lipid droplets filled with triglycerides, and these cells concentrate in different body regions depending on genetic, hormonal and behavioural factors.
Fat deposits in areas such as the submental region, lower abdomen, inner thighs and flanks can be relatively resistant to diet and exercise due to adrenoceptor density. Regional approaches such as lipolysis injection are increasingly preferred by clinicians for these "stubborn" deposits.
Mechanism of Action: Phosphatidylcholine and Deoxycholic Acid
The two most commonly used active agents are phosphatidylcholine (PC) and deoxycholic acid (DC). These two substances are often formulated together to achieve a synergistic effect.
| Property | Phosphatidylcholine (PC) | Deoxycholic Acid (DC) |
|---|---|---|
| Source | Soy lecithin | Synthetic bile acid derivative |
| Mechanism | Cell membrane disruption + lipase activation | Adipocyte lysis via detergent action |
| FDA approval | Not approved (off-label use) | Approved as Kybella® for submental fat |
| Onset of effect | Gradual, 4–8 weeks | Faster, 2–6 weeks |
| Post-procedure oedema | 3–7 days | 5–10 days (more pronounced) |
| Soy allergy risk | Present (soy-derived) | None |
The injected substance disrupts the fat cell membrane and releases the contents of adipocytes. The released triglycerides are converted into fatty acids and glycerol and metabolised in the liver via the lymphatic system and bloodstream. This biochemical process is accompanied by a mild localised inflammatory response, so post-procedure oedema and tenderness are expected, temporary findings.
Which Areas Can Be Treated?
Lipolysis injection achieves its best results in areas where the subcutaneous fat layer is at a superficial-to-moderate depth. The most commonly treated areas at Abel Beauty, along with clinical assessment criteria, are as follows:
- Submental (double chin) area: The area with the strongest clinical evidence; FDA-approved deoxycholic acid (Kybella®) was developed specifically for this indication. Noticeable slimming is achieved with an average of 2–4 sessions.
- Abdominal area: Stubborn fat around the navel and lower abdomen; may require 4–6 sessions due to the larger surface area.
- Flanks and hips: Fat deposits that may be accompanied by cellulite; combination with lymphatic drainage massage strengthens results.
- Inner knee and inner thigh: Localised fat that cannot be corrected with exercise; the relatively thin fat layer requires careful dosing.
- Back and "love handles": Fat layers around the waist; areas with high reported patient satisfaction in body contouring.
- Inner arms: Effective results where skin laxity is not present; RF tightening is recommended in combination when laxity is present.
- Pseudo-gynecomastia (male chest): Off-label use in male chest areas where fat accumulation is predominant without true glandular tissue.
- Face (bichectomy alternative): Lower cheek fat pads; due to the sensitivity of facial anatomy, should only be performed by an experienced physician.
Clinical Evidence and Scientific Data
The efficacy of deoxycholic acid in the submental region was approved by the FDA in 2015 and is supported by multicentre, double-blind, randomised clinical trials. In addition to findings from the pivotal REFINE-1 and REFINE-2 studies, independent research also appears in the literature:
| Study | Method and Population | Key Finding |
|---|---|---|
| REFINE-1 (Humphrey et al., 2016, n=506) | DC 1% vs placebo, submental | 68% improvement in clinician rating; significant reduction in OR (p<0.001) |
| REFINE-2 (Humphrey et al., 2016, n=517) | DC 2% vs placebo, submental | 65% improvement; patient satisfaction score significantly higher than placebo |
| Kenkel et al. (2019) | PC+DC combination, abdomen (n=42) | Average 22% fat layer reduction; low complication rate |
| Rotunda & Kolodney (2006) – Review | PC/DC mechanism analysis | DC demonstrated to achieve lipolysis independently without PC |
Number of Sessions and Treatment Protocol
Lipolysis injection is not a single-session procedure; it must be repeated at specific intervals for optimal results. The standard protocol, which varies by area and fat thickness, is as follows:
- Number of sessions: 2–4 for smaller areas (submental), 4–6 for larger areas (abdomen, flanks).
- Session interval: 4–6 weeks; this period is necessary for the body to eliminate the disrupted adipocytes.
- Injection points: 15–50 points depending on area size; a grid technique ensures homogeneous distribution.
- Volume per point: 0.2–0.5 mL per point; total session dose is determined by protocol and area.
- Session duration: 20–45 minutes including preparation and anaesthesia.
At Abel Beauty, standardised photography and calliper measurements are taken before each session to evaluate treatment response; the injection map and dosage are revised as needed.
Who Is a Suitable Candidate? Patient Selection and Contraindications
Ideal candidate profile:
- Adults in good general health with a body mass index (BMI) between 18.5–30
- Individuals with stubborn localised fat deposits resistant to diet and exercise
- Patients with realistic expectations who prefer to avoid surgery or are not suitable surgical candidates
- Individuals seeking correction of small irregularities remaining after previous aesthetic procedures (touch-up)
Absolute contraindications:
- Pregnancy and breastfeeding
- Active infection, ulceration or inflammation in the treatment area
- Severe hepatic insufficiency (risk of metabolic impairment)
- Soy and lecithin allergy (for phosphatidylcholine-containing formulations)
- Anticoagulant therapy at unapproved doses (warfarin, LMWH, etc.)
Relative contraindications (physician assessment required): Autoimmune conditions, controlled diabetes, low-dose aspirin use, active cardiovascular disease.
Pre-Procedure Preparation: Abel Beauty Step-by-Step Protocol
The pre-procedure process is critically important for a safe and effective lipolysis injection:
- Comprehensive medical history, medication review and physical examination; fat thickness measured with a calliper.
- Contraindication screening; laboratory tests if required (liver enzymes, coagulation tests).
- Standardised photography and measurement recording of the target area.
- Avoiding heavy meals 2–3 hours before the procedure on the day of treatment.
- Aspirin, ibuprofen and omega-3 supplements should be discontinued 5–7 days before the procedure (with physician approval).
- The injection map is drawn and the patient is informed; consent form is obtained.
Post-Procedure Period: What to Expect and Aftercare Guide
Oedema, firmness, mild tenderness and redness lasting 3–10 days after injection are signs of the expected inflammatory response. The following aftercare programme should be followed during this period:
| Period | Expected Findings | Recommended Care | What to Avoid |
|---|---|---|---|
| Days 1–3 | Pronounced oedema, firmness, erythema | Cold compresses (15 min/hour), plenty of water | Tight clothing, massage, hot showers |
| Days 4–7 | Oedema subsiding, mild tenderness | Lymphatic drainage massage (if approved) | Sauna, steam room, intense exercise |
| Weeks 2–4 | Visible slimming begins | Regular exercise, balanced nutrition | Excessive caloric intake |
| Weeks 4–8 | Final result becomes apparent | Follow-up appointment, touch-up assessment | Weight fluctuation |
Side Effects and Complication Management
Although lipolysis injection is minimally invasive, its risk profile should be well understood:
- Common expected side effects: Temporary oedema (95%+), ecchymosis (bruising), local pain and tenderness, firmness, numbness.
- Uncommon side effects (1–5%): Skin contour irregularity (particularly with superficial injection), temporary hyperpigmentation, altered sensation.
- Rare but serious complications (<1%): Bacterial infection, tissue necrosis (incorrect deep injection), permanent scarring, facial nerve injury (in facial area applications), allergic reaction.
All procedures at Abel Beauty are performed under sterile conditions by a physician with experience in facial and body anatomy. Emergency intervention protocols and necessary pharmacotherapeutic agents are kept on hand for potential complications.
Comparison of Lipolysis Injection with Other Regional Fat Reduction Methods
| Method | Efficacy Level | Recovery Time | Durability | Anaesthesia |
|---|---|---|---|---|
| Lipolysis injection | Moderate | 3–10 days | High (if weight maintained) | Topical |
| Liposuction (surgical) | Very high | 2–4 weeks | Very high | General / local + sedation |
| Cryolipolysis (CoolSculpting) | Moderate | Minimal | High | Not required |
| HIFU / Ultrasound lipolysis | Low–moderate | None | Moderate | Not required |
| Radiofrequency lipolysis | Low–moderate | Minimal | Moderate | Not required |
Lipolysis Injection and Combination Treatment Approaches
While lipolysis injection alone may be sufficient in some cases, combination treatments provide more comprehensive results, particularly when cellulite or skin laxity is also present:
- Lipolysis + Endermology/LPG: Accelerates lymphatic drainage and targets cellulite; LPG application between sessions supports recovery.
- Lipolysis + Radiofrequency: Provides skin tightening for accompanying laxity alongside fat reduction; a popular combination especially for the abdomen and inner thighs.
- Lipolysis + Carboxy therapy: Improves microcirculation and increases metabolic activity in the treatment area.
Frequently Asked Questions
Is lipolysis injection permanent? The destroyed fat cells are permanently eliminated; however, remaining adipocytes can enlarge with weight gain. A balanced diet and physical activity are essential for long-term results.
Is the procedure painful? Topical anaesthetic cream is applied before the procedure; a burning and pressure sensation may be felt during injection. The majority of patients report a tolerable level of discomfort. Local anaesthetic can be added on request.
How many sessions are needed? 2–4 sessions for the submental area and 4–6 sessions for larger areas such as the abdomen and flanks are the standard protocol. This is revised according to individual response.
When will results be visible? The first visible changes begin at 4–6 weeks; the final result can be assessed 8–12 weeks after the last session.
Is weight loss required? No. The method targets regional fat volume, not overall weight. Best results are achieved in individuals with a BMI below 30.
Lipolysis Injection at Abel Beauty
Abel Beauty provides services with a team of specialist physicians in medical aesthetics. All formulations used in lipolysis injection procedures are quality-controlled products that comply with relevant medical device and pharmaceutical standards. A personalised injection map is created for each patient; pre- and post-treatment measurements are standardised and recorded, and session-by-session results are shared with the patient via photographic comparison. When a combination treatment plan is needed, other modalities available at the clinic (endermology, radiofrequency, carboxy therapy) are integrated to create a comprehensive body contouring programme. Please contact us for pricing.
This article is for informational purposes only. Please consult a qualified physician for treatment decisions.