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Contour injection

MILLIFIT · Fat-Dissolving DCA Injection

Deoxycholic acid injections for moderate/severe submental fat in adults. Distribution and skin guide eligibility and scope.

Reviewed by the medical team · 2026.09.14

MILLIFIT Injection · manufacturer or supplier reference image

What is MILLIFIT DCA?

MILLIFIT INJ. is Dongkook Pharmaceutical's prescription deoxycholic acid medication. Its official indication is improvement of moderate/severe prominent or excess submental fat in adults.

MILLIFIT DCA at a Glance

Treatment at a glance
CategoryGuide
Official product nameMILLIFIT INJ.
Product classPrescription deoxycholic acid medication
Official indicationImprovement of moderate/severe prominent or excess submental fat in adults
Outside the submental areaSafety/efficacy unestablished · Not recommended
Relation to WayB Line InjectionSeparate treatments

How does DCA work?

DCA injection uses deoxycholic acid to reduce localized fat. Deoxycholic acid damages fat-cell membranes, destroying the cells. It is commonly used when submental fat makes a double chin prominent.

What changes does it aim for?

It may help reduce volume caused by submental fat and improve contours. Changes vary with fat amount and skin condition. Treatment areas and plans depend on the actual product's approved labeling and medical assessment.

Safety and efficacy for subcutaneous fat outside the submental area are unestablished and use is not recommended. It is not described as approved for contouring other body areas.

Why we assess the submental area comprehensively

Submental prominence is not always fat. We assess skin laxity, platysmal bands and tissue altered by previous care, checking whether thyroid, cervical lymph nodes or other causes need evaluation.

Tell us before treatment

  • Local infection or ingredient hypersensitivity
  • Current or previous difficulty swallowing
  • Bleeding disorders and antiplatelet/anticoagulant use
  • Previous submental surgery or procedures
  • Pregnancy/breastfeeding status

Not administered to children, those with injection-site infection or hypersensitivity to deoxycholic acid or ingredients. Individual suitability follows in-person assessment and approved labeling.

How is the plan determined?

We check submental concerns, distribution, goals and history. Sessions, intervals and injection scope follow approved labeling and individual assessment; a set count does not guarantee results.

Recovery & Precautions

Swelling, bruising, pain, redness, reduced sensation or palpable firmness may occur. Reported complications include smile asymmetry from nerve injury, difficulty swallowing, skin ulceration or necrosis, and infection. Contact the clinic immediately for an uneven smile, skin wounds or worsening pain.

Swelling, bruising, pain, redness, numbness or palpable firmness may occur. Responses and recovery vary; we do not assume all disappear quickly. Follow clinical guidance and review progress.

How does it differ from WayB Line Injection?

WayB Line Injection and DCA injections are separate treatments. WayB Line Injection is a steroid-free fat-dissolving program; DCA injections reduce fat through deoxycholic acid. We assess the area, fat amount and skin condition to select a suitable method.

Changes requiring immediate contact

  • Contact us immediately for uneven smile corners or altered facial-muscle movement.
  • Skin ulceration, necrosis, infection and vascular injury have been reported. Report wounds or worsening pain.
  • If you have difficulty breathing or swallowing, call 119 or seek emergency care immediately, and notify the clinic.

04 · QUESTIONS

Frequently Asked Questions

What is DCA injection?

DCA injection uses deoxycholic acid to reduce localized fat. Deoxycholic acid damages fat-cell membranes, destroying the cells. It is commonly used when submental fat makes a double chin prominent.

What results may I expect?

It may help reduce volume caused by submental fat and improve contours. Changes vary with fat amount and skin condition. Treatment areas and plans depend on the actual product's approved labeling and medical assessment.

What are the adverse effects of DCA injection?

Swelling, bruising, pain, reduced sensation and firmness may occur. Reported complications include facial asymmetry from nerve injury, difficulty swallowing, skin ulceration or necrosis, and infection. Seek emergency care immediately for difficulty breathing or swallowing.

Are WayB Line Injection and DCA injections the same?

They are separate treatments. DCA injection uses deoxycholic acid, while WayB Line Injection is a separate fat-dissolving injection for localized fat and contour.

Can MILLIFIT be used outside the submental area?

Safety and efficacy for subcutaneous fat outside the submental area are unestablished and use is not recommended. It is not described as approved for contouring other body areas.

What should I disclose before treatment?

We first assess whether submental volume is fat, laxity or another cause. Disclose local infection, ingredient sensitivity, dysphagia history, bleeding conditions/medications and previous submental surgery/procedures. Pregnancy/breastfeeding must also be checked.

References

References for general treatment information. Please confirm your individual plan with the medical team.

It is okay to feel nervous about your first treatment.
You are welcome to visit even if you have not decided which treatment to choose.

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