Kybella is an injectable prescription treatment used in adults to improve the appearance of moderate to severe fat beneath the chin, also known as submental fat or a double chin.
Its active ingredient is synthetic deoxycholic acid.
Deoxycholic acid is a molecule that occurs naturally in the body and helps with the breakdown and absorption of dietary fat.
When Kybella is properly injected into submental fat, it destroys fat cells in the treatment area.
Submental fat is the layer of fat located beneath the chin.
It can contribute to the appearance commonly called a double chin.
A person can develop submental fullness for several reasons, including:
Having fat beneath the chin does not necessarily mean someone is overweight.
Some people maintain a relatively stable body weight and still have persistent fullness beneath the chin.
Kybella contains synthetic deoxycholic acid.
When injected into appropriate submental fat, it disrupts the membranes of fat cells, causing those cells to be destroyed.
The body then gradually clears cellular debris from the treated area.
This process occurs over time, which is why Kybella results are not immediate.
Yes.
Kybella is FDA-approved for adults to improve the appearance and profile of moderate to severe fat below the chin.
That indication is important.
Kybella should not be described as an FDA-approved injectable for reducing fat anywhere on the body.
The safe and effective use of Kybella for subcutaneous fat outside the submental region has not been established and is not recommended.
No.
Kybella is not intended for weight loss or obesity treatment.
It targets an appropriate localized area of submental fat.
Someone who wants to lose overall body weight has a very different goal from someone at or near a stable weight who is bothered by persistent fat beneath the chin.
Potential candidates may include adults who:
However, not every double chin is primarily caused by fat.
A proper evaluation is important before treatment.
This is an important question.
Fullness beneath the chin can be influenced by several factors, including:
Kybella specifically targets submental fat.
If loose skin, anatomy, or another factor is primarily responsible for the appearance, destroying fat may not produce the desired result.
Kybella is not primarily a skin-tightening treatment.
Its purpose is to reduce appropriate submental fat.
Some patients have both fat and skin laxity beneath the chin.
Reducing fat does not necessarily correct loose skin, and in certain patients skin laxity may become more noticeable after volume is reduced.
That is why the quality and elasticity of the skin should be evaluated before treatment.
Before treatment, the provider evaluates the area beneath the chin and determines whether the patient is an appropriate candidate.
The treatment area is then carefully marked.
Kybella is administered through multiple small injections into the submental fat according to the treatment plan.
The number of injections and amount of medication depend on the size and shape of the treatment area and the individualized treatment plan.
The injection portion of the appointment is generally relatively brief, but the total visit also includes evaluation, preparation, marking of the treatment area, and post-treatment instructions.
Rather than choosing Kybella simply because the appointment may be short, patients should focus on whether injectable submental fat reduction is appropriate for their anatomy and goals.
Treatment is individualized.
The FDA-approved labeling allows for up to six treatments, with treatments spaced at least one month apart.
That does not mean every patient needs six treatments.
The appropriate number depends on the amount and distribution of submental fat, response to previous treatment, and aesthetic goals.
Additional treatment should be based on individual evaluation rather than automatically scheduling the maximum number of sessions.
Kybella results develop gradually.
Because the treatment works by destroying targeted fat cells and allowing the body to process the treated tissue over time, patients should not expect their final result immediately after injections.
Swelling can initially make the area look temporarily fuller.
Improvement is evaluated over the weeks and months following treatment.
Individual results vary.
Yes. Swelling is one of the most common reactions following Kybella treatment.
The area beneath the chin can look noticeably fuller immediately after treatment.
This is important for patients to understand before scheduling an appointment, particularly if they have an upcoming wedding, vacation, photoshoot, or important social event.
Other common treatment-area reactions can include:
Patients should receive appropriate aftercare instructions from their treating provider.
Kybella involves multiple injections, so patients may experience discomfort.
Pain, tenderness, swelling, bruising, numbness, redness, and firmness can occur in the treatment area.
Individual experiences vary.
It is therefore better to explain what patients may realistically experience rather than describe the procedure as completely painless.
Kybella is a prescription treatment and has risks beyond temporary swelling.
Important potential complications include nerve injury in the jaw area that can result in an uneven smile or facial muscle weakness, difficulty swallowing, and injection-site problems.
The prescribing information also includes warnings concerning injection into or near vulnerable anatomical structures.
Proper patient selection, knowledge of anatomy, and correct injection technique are therefore important.
Temporary injury to the marginal mandibular nerve has occurred with Kybella.
This can cause facial muscle weakness or an asymmetric smile.
This is one reason Kybella should be administered by an appropriately trained healthcare professional familiar with the anatomy of the chin and neck.
Patients should discuss this and other potential complications before treatment.
Difficulty swallowing, known as dysphagia, has been reported following Kybella treatment.
Patients with a history of swallowing problems should disclose this before treatment.
If concerning symptoms develop after treatment, patients should contact their treating healthcare provider.
Kybella should not be administered when there is an infection at the injection site.
Patients should also provide a complete medical history before treatment, including information about:
The provider should determine whether treatment is appropriate.
Fat cells destroyed by Kybella in the treated area cannot store or accumulate fat again.
However, this does not mean a person's appearance can never change.
Remaining fat cells can change in size, and aging, weight fluctuations, skin laxity, and other anatomical changes can affect the chin and neck over time.
Maintaining a relatively stable weight can help preserve overall body contour.
Kybella and CoolSculpting use completely different methods.
Kybella is an injectable prescription treatment containing synthetic deoxycholic acid.
CoolSculpting uses controlled cooling to target appropriate localized subcutaneous fat without injections.
Both may be considered for appropriate submental fat, but treatment experience, swelling, candidacy, treatment planning, and individual preferences differ.
Neither is automatically better for everyone. For a detailed side-by-side comparison, read Kybella vs. CoolSculpting for Double Chin: Which Treatment Is Right for You?
Submental liposuction is a surgical approach that physically removes fat through a cannula.
Kybella does not involve liposuction or surgical fat removal.
For some patients, avoiding surgery is a major priority.
Others may prefer a surgical approach because of their anatomy, amount of fat, desired degree of correction, or preference regarding treatment course.
A qualified provider can explain which category may better match the patient's goals.
Kybella and Emsculpt should not be considered competing treatments for the same problem.
Kybella targets appropriate submental fat.
Emsculpt uses electromagnetic energy for muscle stimulation in appropriate treatment areas.
A treatment designed to stimulate muscle is fundamentally different from an injectable medication used for submental fat.
If loose skin rather than fat is the main concern, Kybella may not address the underlying problem.
Skin laxity can develop because of aging, collagen and elastin changes, genetics, sun exposure, and weight changes.
The treatment plan should therefore distinguish among:
Sometimes more than one concern contributes to the appearance of the lower face and neck. If skin laxity rather than fat is your primary concern, read How to Tighten Loose Skin Without Surgery.
Kybella's established FDA-approved use is for moderate to severe submental fat in adults.
Its safe and effective use for subcutaneous fat outside the submental region has not been established and is not recommended.
Patients interested in abdominal, arm, thigh, flank, back, or other body-fat reduction should discuss treatments specifically intended for those areas rather than assuming Kybella is an approved injectable solution for body fat. For body areas outside the chin, compare appropriate options in our Non-Surgical Body Contouring Guide.
Patients may encounter various products online or on social media described as fat-dissolving injections.
They should not assume these products have the same regulatory status, clinical evidence, ingredients, manufacturing standards, or safety information as Kybella.
Kybella is a prescription medication with a specific FDA-approved indication.
Before receiving any injectable product, patients should know exactly what is being injected, whether it is approved for the proposed use, who manufactures it, and what evidence and safety information are available.
Start by determining what is causing the fullness.
If submental fat is the primary issue, Kybella or another appropriate fat-reduction approach may be considered.
If loose skin is the main concern, a skin-focused approach may be more appropriate.
If chin or jaw anatomy is contributing significantly to the profile, reducing fat alone may not produce the desired change.
If several factors are present, treatment planning may require a combination approach. For a broader look at the available approaches, read How to Get Rid of a Double Chin: Best Non-Surgical Treatment Options.
Kybella may be worth considering for an appropriate adult who has moderate to severe submental fat, wants a non-surgical injectable option, understands the possibility of significant temporary swelling, and has realistic expectations.
It may be less appropriate when the main problem is loose skin, anatomy rather than fat, or when the patient wants a treatment for fat elsewhere on the body.
The best way to determine whether Kybella makes sense is through an individualized evaluation of the chin and neck.
At Park Slope Laser Aesthetic Center in Brooklyn, treatment for a double chin should begin by identifying what is actually creating the fullness beneath the chin.
Submental fat, loose skin, jawline anatomy, and other factors can produce different appearances and may require different treatment approaches.
For appropriate adults with moderate to severe submental fat who prefer a non-surgical injectable treatment, Kybella may be one option to discuss during consultation.
