Injectable Adipocytolysis for Submental Fat Reduction
Summary
Injectable adipocytolysis has emerged as a minimally invasive approach to sculpt the cervicomental region by selectively disrupting fat cells beneath the chin. This technique relies on locally delivered agents—most notably bile acids, phospholipids or enzyme mixtures—to induce adipocyte membrane destabilisation, apoptosis and enzymatic lipolysis. Treatment typically involves a series of subcutaneous injections spaced several weeks apart, with ultrasound or caliper measurements used to gauge reductions in submental fat thickness. Clinical outcomes focus on both objective measures of fat pad reduction and patient-reported satisfaction with contour improvement. While deoxycholic acid (DCA) is the only agent approved for this indication in many regions, research into alternative formulations seeks to improve tolerability, extend duration of action and minimise off-target inflammation. As demand for non-surgical contouring grows worldwide, injectable adipocytolysis stands out for its combination of reproducible efficacy, brief recovery time and adaptability to different anatomical subzones.
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Injectable Adipocytolysis for Submental Fat Reduction publication trend
The graph below shows the total number of articles in injectable adipocytolysis for submental fat reduction across all publications each year (not limited to Nature Index journals).
Technical terms
Adipocytolysis: Chemical disruption of adipocyte membranes leading to cell death and fat release.
Submental fat: Localised adipose tissue beneath the chin that influences cervicomental contour.
Deoxycholic acid (DCA): A secondary bile acid used as an injectable surfactant to induce non-selective adipocyte lysis.
Phosphatidylcholine (PPC): A phospholipid agent that promotes adipocyte apoptosis and enzymatic lipolysis, often combined with bile acids.
Enzymatic lipolysis: Breakdown of triglycerides within adipocytes by exogenous or endogenous enzymes.
References
- Efficacy and safety of the enzymatic mixture - Lipase, collagenase and hyaluronidase - In the treatment of moderate to severe submental fat: A prospective cohort study. Heliyon (2024).
- Phase 1 study of AYP-101 (soybean phosphatidylcholine): safety, pharmacokinetics, and lipid profile effects for reducing submental fat. Lipids in Health and Disease (2024).
- Efficacy, safety, and potential industry bias in using deoxycholic acid for submental fat reduction ‒ A systematic review and meta-analysis of randomized clinical trials. Clinics (2023).
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