Fat-dissolving injections
Deoxycholic acid (Kybella/Belkyra) · 'Lemon Bottle' · Aqualyx · lipolysis injections
'Lemon Bottle', a Korean 'natural' fat-dissolving solution, went viral on TikTok in 2023 with bacon-fat demonstrations and beauticians injecting it in salons, prompting warnings from UK regulators and professional bodies in 2024–25.
Search interest: about 200 searches a month in Singapore for “lemon bottle” (Ahrefs, October 2026).
The licensed drug works in the right chin in exchange for a swollen fortnight; everything sold under the same name in a salon is a different substance with a borrowed reputation.
Reviewed against the Aesthetics International standard. Category: Injectables.
Do Fat-dissolving injections work?
Caution. The licensed drug works in the right chin in exchange for a swollen fortnight; everything sold under the same name in a salon is a different substance with a borrowed reputation. Deoxycholic acid has two phase 3 placebo-controlled trials: around 70 per cent of treated participants improved by a grade on clinician and patient scales versus under 20 per cent on placebo, with MRI confirming volume loss, at the cost of swelling, numbness and a few per cent of temporary marginal mandibular nerve weakness.
- Verdict
- Caution Evidence, regulation or risk profile does not yet support routine use.
- Evidence base
- 3 PubMed-indexed studies cited below, including systematic reviews, randomised trials.
- Suits
- A small, discrete fat pad under the chin in a person with good skin elasticity who accepts weeks of swelling, treated with a licensed product by a doctor where that product is approved.
- Not for
- Loose neck skin (fat removal makes it worse), larger fat volumes, anyone offered an unlicensed 'natural' solution, and anyone in a jurisdiction where the drug is not approved.
- In Singapore
- Deoxycholic acid is not an HSA-registered medicine in Singapore and, to our knowledge, is not available here; the Ministry of Health stopped new mesotherapy and injection-lipolysis services from 2015 outside approved clinical trials.
- Category
- Injectables · about 200 searches a month in Singapore for “lemon bottle”
- Reviewed
- 1 October 2026 by Aesthetics International. Revised as evidence and regulation change.
What it is
Injections intended to destroy fat cells in a small area, most often under the chin. Deoxycholic acid is a licensed drug in the US, Canada and Australia for submental fat; phosphatidylcholine and deoxycholate mixtures (Aqualyx and similar) are sold as devices or cosmetics in some markets; 'Lemon Bottle' is a cosmetic-grade solution of riboflavin, carnitine and plant extracts with no demonstrated lipolytic action.
How it works
Deoxycholic acid is a bile acid detergent: it disrupts fat cell membranes, and the destroyed cells are cleared by inflammation over weeks, which is why the area swells considerably after each session. Skin, nerves and vessels are not spared if the drug reaches them, so placement is in a mapped grid at a set depth in fat only. Products that do not contain a detergent have no plausible mechanism for destroying fat.
What the evidence says
Deoxycholic acid has two phase 3 placebo-controlled trials: around 70 per cent of treated participants improved by a grade on clinician and patient scales versus under 20 per cent on placebo, with MRI confirming volume loss, at the cost of swelling, numbness and a few per cent of temporary marginal mandibular nerve weakness. Real-world reviews document serious events, including skin ulceration, alopecia and arterial injury, most of them technique-related. Phosphatidylcholine combinations have only uncontrolled series. 'Lemon Bottle' has no peer-reviewed clinical trials at all.
What people are saying
Paraphrased from public discussion on TikTok, Instagram, Reddit and in the press. Not testimonials, and not about any one clinic. Reported in: ladbible.com, graziadaily.co.uk, nbcnews.com.
What the studies show
- RCT
Deoxycholic acid produced a one-grade composite improvement in 70 per cent of participants versus 19 per cent on placebo, with MRI-confirmed volume reduction and transient marginal mandibular nerve weakness in about four per cent.
REFINE-1, a Multicenter, Randomized, Double-Blind, Placebo-Controlled, Phase 3 Trial With ATX-101, an Injectable Drug for Submental Fat Reduction — Dermatologic Surgery, 2016. PMID 26673433.
- systematic review
Real-world serious events after deoxycholic acid, including ulceration, alopecia, nerve injury and arterial damage, were mostly procedure-related and avoidable with correct depth, mapping and dosing.
Management of Serious Adverse Events Following Deoxycholic Acid Injection for Submental and Jowl Fat Reduction: A Systematic Review and Management Recommendations — Aesthetic Surgery Journal Open Forum, 2024. PMID 39247122.
- case series
A large single-centre series of phosphatidylcholine–deoxycholate injections reported fat reduction with swelling and nodules as common effects, in the absence of controlled trial evidence for the combination.
Injection Lipolysis: A Systematic Review of Literature and Our Experience with a Combination of Phosphatidylcholine and Deoxycholate over a Period of 14 Years in 1269 Patients of Indian and South East Asian Origin — Journal of Cutaneous and Aesthetic Surgery, 2018. PMID 30886477.
Studies are selected for relevance and quality, not for agreement with the verdict; PubMed records are linked so the reader can check them.
Who it suits
Suits
A small, discrete fat pad under the chin in a person with good skin elasticity who accepts weeks of swelling, treated with a licensed product by a doctor where that product is approved.
Not for
Loose neck skin (fat removal makes it worse), larger fat volumes, anyone offered an unlicensed 'natural' solution, and anyone in a jurisdiction where the drug is not approved.
Alternatives
The two reviewed treatments most often weighed against Fat-dissolving injections, on the same standard.
| Fat-dissolving injections | Fat freezing | Emsculpt Neo | |
|---|---|---|---|
| Verdict | Caution | Established | Established |
| What it is | Injections intended to destroy fat cells in a small area, most often under the chin. | A suction cup cools a pinched fold of fat to a temperature that triggers fat-cell death while sparing skin and nerves. | A paddle delivers high-intensity focused electromagnetic energy that forces supramaximal muscle contractions — tens of thousands in a session — combined with radiofrequency heating of the overlying fat layer. |
| Evidence base | 3 PubMed-indexed studies cited below, including systematic reviews, randomised trials. | 3 PubMed-indexed studies cited below, including systematic reviews. | 3 PubMed-indexed studies cited below, including systematic reviews. |
| Suits | A small, discrete fat pad under the chin in a person with good skin elasticity who accepts weeks of swelling, treated with a licensed product by a doctor where that product is approved. | Discrete pinchable pockets — flanks, lower abdomen — in people with good skin recoil who want reduction, not definition. | Fit people with small, stubborn fat pockets who want more definition; post-partum abdominal tone as part of a broader plan. |
| In one line | The licensed drug works in the right chin in exchange for a swollen fortnight; everything sold under the same name in a salon is a different substance with a borrowed reputation. | Reducing fat under skin that has already lost its recoil leaves the same outline and looser skin — settle which is dominant first. | For the rest, map the fat and skin first — the plane decides the tool. |
Risks
Marked swelling, bruising, numbness, nerve weakness with a crooked smile, skin ulceration, hair loss in the beard area, and with unregulated products, burns, abscesses and necrosis reported after salon injections.
In Singapore
Deoxycholic acid is not an HSA-registered medicine in Singapore and, to our knowledge, is not available here; the Ministry of Health stopped new mesotherapy and injection-lipolysis services from 2015 outside approved clinical trials. 'Lemon Bottle' and similar products are not registered medicines or devices. This page is an editorial review of a treatment we do not offer; submental fat is addressed with energy devices instead.
“The licensed drug works in the right chin in exchange for a swollen fortnight; everything sold under the same name in a salon is a different substance with a borrowed reputation.”
Vetted protocols on the same problem
Questions
Is Lemon Bottle the same as Kybella?
Can I get fat-dissolving injections in Singapore?
Does fat dissolving tighten skin?
Cite this review
Aesthetics International (2026). Fat-dissolving injections: does it work? Evidence, risks and verdict. https://aesthetics-international.org/treatments/fat-dissolving-injections/ (reviewed 1 October 2026).
Editorial, unpaid and independent of any manufacturer. Verdict: Caution. See what works and what doesn't across all 153 reviews. Spotted an error or a newer study? Suggest a correction — changes are logged on the corrections page. Terms are defined in the glossary.
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