Quick Answer: Carboxytherapy is a minimally invasive procedure in which medical-grade CO₂ gas is injected subcutaneously to target cellulite, localised fat deposits and skin laxity. It increases tissue oxygenation via the Bohr effect, stimulates lipolysis and triggers collagen synthesis. A protocol of 10–15 sessions is applied; the best results are achieved for Grade II cellulite. At Virtuana Clinic (Izmit/Kocaeli), combination protocols with cryolipolysis, HIFU and radiofrequency are available.
Carboxytherapy (carbon dioxide therapy) has been used in the treatment of vascular diseases since the 1930s and was introduced into medical aesthetics in the 1990s. CO₂ is not foreign to the human body — it is a natural metabolic by-product, and the body's CO₂ regulation systems are highly developed. This biological tolerance is the fundamental factor that makes carboxytherapy exceptionally safe. Decades of strong clinical data from Europe support its use.
Mechanism of Action of Carboxytherapy
CO₂ injection works through multiple mechanisms, which makes it unique in body aesthetics:
- Bohr Effect (Vasodilation + Oxygenation): When tissue CO₂ concentration increases, haemoglobin releases oxygen more readily (the oxyhaemoglobin dissociation curve shifts rightward). At the same time, local arterioles dilate and microcirculation increases by up to 80%. The result is more oxygen and a faster metabolism.
- Lipolysis Stimulation: Elevated local CO₂ → pH drop → lipase enzyme activation → adipocyte breakdown. This effect creates the conditions for apoptosis in fat cells.
- Collagen Synthesis: Improved microcirculation and resolution of tissue hypoxia trigger fibroblast activation. Newly formed collagen fibres achieve skin tightening.
- Lymphatic Drainage: The mechanical expansion of the CO₂ bolus within the tissue increases lymphatic flow, reducing fluid accumulation that feeds oedema and cellulite.
Body Treatment Areas for Carboxytherapy
| Treatment Area | Target Concern | Expected Efficacy | Recommended Sessions |
|---|---|---|---|
| Abdomen / Waist | Localised fat, cellulite | Grade II cellulite: +++ | 10–15 |
| Thighs / Buttocks | Cellulite, localised fat | Grade I–II: +++ | 12–15 |
| Inner legs | Skin laxity, fat | ++ | 10–12 |
| Under-eye area | Dark circles (vascular), puffiness | +++ (vascular type) | 4–6 |
| Scalp | Hair loss (androgenetic) | ++ (adjunctive) | 8–10 |
| Scars / Stretch marks | Atrophic scars, striae | ++ | 8–10 |
| Wound healing | Chronic wounds, diabetic foot | +++ (medical) | Clinical decision |
Body Treatment Protocol: Technical Parameters
| Zone | Needle Depth | Flow Rate | Volume / Session | Entry Points |
|---|---|---|---|---|
| Abdomen (deep fat) | 13–25 mm (SC) | 100–200 mL/min | 400–600 mL | 8–12 |
| Abdomen (cellulite / skin) | 4–6 mm (intradermal) | 50–100 mL/min | 100–200 mL | 10–20 |
| Thighs / Buttocks | 10–20 mm (SC) | 100–150 mL/min | 300–500 mL | 10–15 |
| Under-eye area | 2–3 mm (periorbital) | 15–20 mL/min | 10–15 mL | 2–4 |
Efficacy in Cellulite: Grade Classification and Realistic Expectations
Accurate grading of cellulite guides treatment selection and expectation management:
- Grade I (Mattress sign): Visible only under compression. May resolve completely with carboxytherapy combined with lifestyle modification. Expectation: +++
- Grade II (Not visible supine, visible standing): The stage at which carboxytherapy is most effective. Significant improvement with 10–15 sessions combined with cryolipolysis. Expectation: +++
- Grade III (Visible in all positions): Partial improvement is possible. Combined treatment is essential: endermology + radiofrequency + carboxytherapy. Expectation: ++
- Grade IV (Deep pits, fibrotic bands): Carboxytherapy alone is insufficient. Should be combined with subcision or laser lipolysis. Expectation: + (adjunctive)
Carboxytherapy After Cryolipolysis: A Synergistic Combination
The combination of cryolipolysis (fat freezing) and carboxytherapy is one of the most frequently applied body contouring protocols at Virtuana Clinic. The rationale is as follows:
- Two to four weeks after a cryolipolysis session, apoptotic fat cells enter the phagocytic clearance phase.
- Carboxytherapy applied during this window accelerates the removal of waste lipids from the tissue through enhanced microcirculation.
- At the same time, skin laxity — a common complaint after cryolipolysis — is prevented by carboxytherapy's collagen-stimulating effect.
- Clinical outcomes: approximately 20–30% more pronounced contour improvement compared with cryolipolysis alone.
Combination Options with Other Body Treatments
- Radiofrequency (RF) + Carboxytherapy: RF tightens the skin with deep heat while carboxytherapy creates a synergistic effect through circulatory support. Weekly alternating application is recommended.
- Endermology (LPG) + Carboxytherapy: LPG mechanically loosens fibrotic bands; carboxytherapy supports the process with oxygenation. The most powerful non-invasive combination for Grade III cellulite.
- Mesotherapy + Carboxytherapy: When lipolytic cocktails are applied 48 hours after carboxytherapy, the penetrating lipolytic effect is stronger.
Pain Management and Patient Experience
The most frequently reported side effect of carboxytherapy is a burning, pressure and cramping sensation at the injection site. This sensation results from CO₂ expanding within the tissue and typically resolves spontaneously within 5–15 minutes. Practical pain management strategies include:
- Starting at a low flow rate (50 mL/min), then increasing according to patient tolerance
- Using warmed CO₂ (some devices offer 37°C heating)
- Topical anaesthetic cream (EMLA) before injection is not required but may be preferred
- Mild pain in the thigh and buttock areas that subsides during massage is considered normal
Contraindications
- Acute myocardial infarction or decompensated heart failure
- Active deep vein thrombosis
- Pregnancy (scientific concern; teratogenicity unknown)
- Severe chronic obstructive pulmonary disease (COPD)
- Active infection at the injection site
- Epilepsy (rare, but caution is advised)
How Many Sessions Are Required? Maintenance Protocol
Carboxytherapy produces a cumulative effect; a single session is not sufficient:
- Initial series: 10–15 sessions, once or twice a week. The first visible change is generally perceived after the 5th or 6th session.
- Post-series evaluation: A 4–6 week wait after the 15th session, followed by a photographic assessment.
- Maintenance sessions: Once or twice monthly; recommended to sustain results.
- Annual repeat series: Seasonal (typically autumn–winter) series of 6–8 sessions.
This article is for informational purposes only. Please consult a qualified physician for treatment decisions.