SEOLREIM · JOURNAL
Carboxytherapy CO₂ injections: evidence for cellulite effects, pain, and recovery precautions
Full translation of the Korean article. Translation checked for completeness, numerical consistency and medical meaning; separate medical review of this translation is pending. Translation updated: 2026-10-28.
Carboxytherapy is a minimally invasive treatment using controlled injections of medical carbon dioxide (CO₂) into skin or subcutaneous tissue, studied for cellulite and local contours. Changes in skin appearance or circumference in small studies do not establish weight loss or reduced visceral fat. It also differs from CO₂ lasers and topical carbonated products; check pain, bruising, infection, cardiopulmonary condition, the actual device, gas handling, and approval.
Definition, benefits and precautions at a glance
| Category | What to check |
|---|---|
| Technology | Controlled intradermal/subcutaneous injection of medical CO₂ |
| Candidates | Research on selected cellulite and local-contour concerns |
| Limitations | Small studies and heterogeneous methods; cannot replace obesity or visceral-fat treatment |
| Recovery | Stinging, pressure, bruising, and temporary swelling are possible |
| Cautions | Check cardiopulmonary, thrombotic, bleeding, and infection status, gas, sterilization, and approval |
Definitions and how the treatments work
Mechanisms involving injected CO₂ effects on local tissues and microcirculation have been proposed, but these explanations alone do not establish permanent fat-cell removal or normalization of metabolism. Exposure varies with gas flow, temperature, amount, area, and the actual device. Topical carbonated products and injections have different routes, while CO₂ lasers use light energy; similar names do not make them the same treatment. This article provides no method for self-injecting medical gas.
Potential benefits and limitations
A 2016 pilot study in 10 women and a comparative study in 48 people reported changes in cellulite appearance and circumference. Small samples, comparison methods, device differences, and limited follow-up make long-term persistence or superiority across methods difficult to establish. A 2025 randomized study in 78 people assessed whether a vibration device relieved pain and found no difference; it did not assess fat reduction. The word “randomized” alone does not justify citing it as strong body-shaping evidence.
Suitable candidates and preliminary assessment
Adults concerned about thigh or buttock cellulite should discuss fat amount, skin laxity, depressions, and swelling separately. Disclose heart or lung disease, respiratory-function problems, kidney disease, thrombosis or venous disease, medications increasing bleeding risk, active infection, wounds, reduced sensation, pregnancy, and breastfeeding. Conditions with inadequate safety data may require postponement or other evaluation. Clinicians determine contraindications according to device, treatment extent, and history.
Procedure, recovery and preparation
Record goals, photographs, and circumferences; verify the actual device, Korean approval, medical gas, disposable connectors, filters, sterilization practices, and pain management. Treatment is applied to clinician-planned areas without reproducing a paper’s flow rate, angle, or amount as an individual prescription. Pressure, stinging, and temporary swelling may occur, and bruising may last longer; allow observation time before photography, swimming, or departure. Follow individualized advice on restarting massage, exercise, and saunas.
Adverse effects, contraindications and precautions
Besides injection pain, tenderness, bruising, erythema, and temporary swelling, consider infection, tissue injury, and abnormal gas distribution. Carbon dioxide being processed by the body does not guarantee harmlessness. Breathlessness, chest pain, fainting, rapidly increasing swelling, severe persistent pain, pus, or fever require immediate care. Do not substitute air or nonmedical gas or inject it yourself. Also check whether adjunct devices claiming pain relief have established efficacy.
Comparing carboxytherapy, CO₂ lasers, RF, and subcision
| Method | Main goal | Key differences and precautions |
|---|---|---|
| Carboxytherapy | Medical-gas injection | Minimally invasive; check pain, gas handling, asepsis, and evidence |
| CO₂ laser | Targeted skin treatment with light energy | Principles, recovery, and risks differ from gas injection |
| Onda/RF body treatment | Thermal tissue response to electromagnetic energy | Assess device-specific approval, fat/skin goals, and burns |
| Cellulite subcision | Release of selected fibrous adhesions | Assess depression type, bleeding, bruising, and operator |
Questions and answers for a medical consultation
The answers below are literature-based consultation questions, not a clinician interview or individual diagnosis; actual medical review remains incomplete.
Q. Is it the same as a CO₂ laser?
A. No. Carboxytherapy injects gas; CO₂ lasers treat with light energy.
Q. Will carboxytherapy reduce my weight?
A. Local appearance and circumference data cannot be extrapolated to weight or visceral-fat reduction. A separate obesity-management plan is needed.
Q. Does a randomized study make the effect certain?
A. Check what the study measured. Research on vibration devices and pain does not establish fat reduction.
Evidence sources and full text
Cellulite pilot study in 10 participants (2016, https://pubmed.ncbi.nlm.nih.gov/27578994/ ; full text https://pmc.ncbi.nlm.nih.gov/articles/PMC5001663/), carboxytherapy versus mesolipolysis in 48 participants (2018, https://pubmed.ncbi.nlm.nih.gov/29338476/), randomized study of vibration-device analgesia (2025, https://pubmed.ncbi.nlm.nih.gov/41053479/). Evidence checked: 2026-10-12. Pain research was not cited as body-shaping research, and limitations of controls, size, and follow-up were distinguished.
SEOLREIM’s principle of consultations and procedures performed personally by the director
SEOLREIM Clinic describes consultations and procedures performed personally by the clinic director, with principles of genuine products, appropriate doses, and attentive care. Consultations begin by distinguishing skin condition and goals, then checking the products and devices actually available, approved uses, dosage or energy plans, recovery, and risks. Signature Onda and body InMode consultations distinguish fat, skin, and cellulite goals. When booking, confirm current carboxytherapy availability, the actual device, approval, gas, pain management, and emergency response.
Booking, language, and location information for overseas visitors
Visitors seeking body contouring Korea or medical tourism Korea should distinguish cellulite from obesity treatment and share cardiopulmonary history, medications, and stay dates. Arrange a pre-departure injection-site check and contact and care pathways for adverse reactions after returning home. SEOLREIM Clinic is approximately 1 minute from exit 3 of Gangnam Station, on the 11th floor of the Gangnam8258 Building. Appointments can be made through the website’s KakaoTalk consultation, NAVER booking, and telephone channels. Overseas visitors comparing dermatology clinics in Gangnam, Seoul, near Gangnam Station, or elsewhere in Korea should prepare information on medications, allergies, recent procedures, and departure dates. When booking, specify your preferred language, such as Japanese, Chinese, Arabic, Mongolian, or Indonesian, and whether you need interpretation, to confirm the support actually available and its cost. Continuous consultation availability in every language and same-day procedures cannot be guaranteed. Also agree during consultation on how to contact the clinic about adverse reactions after returning home and when follow-up assessments will occur.
Authorship, review and dates
Written by: SEOLREIM content editor / Medical review of the source: completed / Review confirmed: 2026-10-23 / Published: 2026-10-12 / Updated: 2026-10-27. General medical information, not a substitute for individual diagnosis or a procedure prescription.
SEOLREIM · GANGNAM, SEOUL
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