Submental fullness — what most people call a double chin — is one of the most common and most stubborn cosmetic concerns affecting otherwise slender patients. The fat that accumulates beneath the chin and along the upper neck does not respond reliably to weight loss or exercise — many patients have a double chin even at very low body weights, simply because submental fat distribution is largely genetic. The visible result is the same regardless of cause: the chin and jawline appear less defined, the neck looks fuller, and the face reads as heavier than the rest of the body suggests. Until the FDA approval of Kybella, the only solution was surgery — chin liposuction or neck lift. Kybella changed that. The injectable treatment uses a synthetic version of deoxycholic acid — a naturally occurring substance that helps the body metabolize fat — to dissolve submental fat cells permanently. Once dissolved, the fat cells do not regenerate, making Kybella results lasting in patients who maintain stable weight. Dr. John Anastasatos at Los Angeles Plastic Surgery offers Kybella injections at his Beverly Hills office for non-surgical reduction of the double chin.

Dr. Anastasatos brings the most directly relevant credentials possible to Kybella treatment. He has delivered formal academic lectures at the UAB Kirklin Clinic on “Botox and Chemical Peels” — direct teaching credentials in injectable cosmetic treatment. He has published peer-reviewed academic work on Cell-Assisted Lipotransfer (CAL) — directly relevant to the science of fat tissue behavior, which is the foundational anatomy behind Kybella’s fat-dissolving mechanism. With over two decades of facial and body cosmetic expertise in Beverly Hills since 2007, he is board certified by the American Board of Plastic Surgery, a Fellow of the American College of Surgeons (FACS), a member of the American Society of Plastic Surgeons (ASPS) and American Society for Aesthetic Plastic Surgery (ASAPS), and named by The Luxe Insider as one of the Top 10 Plastic Surgeons in the World.

How Kybella Works

Kybella’s active ingredient is synthetic deoxycholic acid — a substance the body naturally produces to help break down dietary fat. When injected into the submental fat layer beneath the chin, deoxycholic acid disrupts the membranes of fat cells, causing them to break down. The released fat content is gradually absorbed and metabolized by the body, while the destroyed fat cells are cleared by the body’s normal cellular processes.

The critical biological point: once fat cells are destroyed by Kybella, they do not regenerate. This makes the results permanent in patients who maintain a stable weight — fat that comes back is new fat in remaining cells, which is preventable through normal weight maintenance.

What to Expect From Non-Surgical Double Chin Reduction

• In-office procedure — Typically 15 to 20 minutes per session
• Multiple injections per session — Distributed in a precise grid pattern across the submental area
• Topical anesthesia — Applied beforehand for patient comfort
• No surgical downtime — Patients return to normal activities immediately
• Visible swelling for several days — Most pronounced in the first 48 hours; gradually resolves over a week or two
• Mild tenderness, numbness, or firmness — Common during initial healing; all resolve as treatment area normalizes

Treatment Schedule and Results Timeline

• First treatment: Initial fat reduction begins immediately but is masked by post-treatment swelling
• One-month interval: Most patients require approximately 4 weeks between sessions
• Two treatments typically: Many patients achieve their desired contour with two sessions
• Third treatment if needed: Some patients with more substantial submental fat benefit from a third session
• Final result: Visible refinement emerges over 2 to 3 months as swelling resolves and treated fat is fully metabolized

Kybella vs. Liposuction or Neck Lift

Kybella is non-surgical, has minimal downtime, and produces permanent fat reduction — but it is not equivalent to surgery in every situation:

• Kybella addresses fat only — It does not tighten skin
• Best candidates have good skin elasticity — Skin needs to be able to retract as fat dissolves
• Patients with significant skin laxity — May benefit more from chin liposuction with skin tightening, or a neck lift, both of which can address skin and underlying anatomy in one procedure

During consultation, Dr. Anastasatos evaluates the specific anatomy — fat distribution, skin elasticity, underlying muscle and bone — to determine whether Kybella alone or a different approach will produce the best result.

Frequently Asked Questions About Kybella

Are the results permanent?

Yes. Once fat cells are destroyed by Kybella, they do not regenerate. The results are permanent in patients who maintain a stable weight.

How many treatments will I need?

Most patients achieve their desired result in 2 treatments spaced approximately 4 weeks apart. Some patients with more substantial fat benefit from a third treatment.

Is there pain during the procedure?

Topical numbing cream is applied before treatment, and the injections themselves cause brief stinging that subsides quickly. Most patients tolerate the procedure well.

What does recovery look like?

Visible swelling is most pronounced in the first 48 hours and resolves over the following 1 to 2 weeks. Most patients describe a feeling of firmness or tenderness in the treated area that gradually resolves. There is no surgical downtime — patients return to work and normal activities immediately, though some prefer to schedule treatment when the early swelling will not be socially visible.

Am I a candidate for Kybella?

The best candidates have moderate submental fullness with good skin elasticity. Patients with significant skin laxity may benefit more from surgical alternatives. Dr. Anastasatos evaluates anatomy during consultation to confirm candidacy and recommend the appropriate approach.

Why Choose Dr. Anastasatos for Kybella Treatment

• UAB Kirklin Clinic Lecturer on Injectables: Direct academic teaching credentials in cosmetic injection
• Cell-Assisted Lipotransfer Publication: Peer-reviewed academic work in fat tissue science — directly relevant to Kybella’s mechanism
• Two Decades in Beverly Hills: Private practice since 2007 dedicated to facial and body cosmetic surgery
• Comprehensive Treatment Options: Access to Kybella alongside surgical alternatives (chin liposuction, neck lift) for patients whose anatomy requires a different approach
• Performed Personally: Every Kybella injection performed by Dr. Anastasatos
• Top 10 Plastic Surgeon in the World: Named by The Luxe Insider

Schedule Your Kybella Consultation in Beverly Hills

If a double chin is making your face look heavier than the rest of your body suggests — and surgery is more than you want to pursue — Kybella offers permanent, non-surgical reduction of submental fat performed by a board-certified plastic surgeon. Dr. John Anastasatos welcomes patients to the Beverly Hills office at 436 North Bedford Drive, Suite 202, Beverly Hills, CA 90210, for a private consultation. Contact Los Angeles Plastic Surgery to schedule your appointment with Dr. Anastasatos.