Non-surgical genioplasty : correcting insufficient chin projection
The chin occupies a central place in facial harmony. At the meeting point of frontal appearance and profile, it directly influences perceived symmetry, overall balance and mandibular definition. When too understated, receding or asymmetrical, it can disrupt harmony and accentuate contrasts, particularly alongside a prominent nose or underdeveloped mandible.
Non-surgical genioplasty targets these imbalances. Deep injection of volumising hyaluronic acid projects, redefines or improves chin symmetry while preserving natural facial proportions.
This approach nevertheless requires rigorous patient selection, essential to an aesthetic, harmonious result.
Patient selection criteria for non-surgical genioplasty
Successful non-surgical genioplasty depends above all on rigorous patient selection. Beyond aesthetic motivations, this identifies patients for whom treatment offers harmonious, natural and lasting results with optimal safety and a sound medical indication.
Morphological criteria for non-surgical genioplasty
- Moderate retrogenia : the most common situation in non-surgical genioplasty is retrogenia, also called a “receding chin”. This means the chin sits behind the vertical forehead and nose line (Ricketts line). When recession is moderate, injections can correct it effectively. The aim is balanced projection, often complementing jawline or nose treatment.
- Slight asymmetry or contour irregularity : some patients have subtle chin asymmetry (slight lateral deviation, flattening on one side or unilateral lack of projection). As long as it remains moderate, injections can correct it.
- A shortened lower facial third : some patients have a shortened lower third without major bone abnormalities. By subtly increasing chin vertical height or projection, non-surgical genioplasty rebalances facial proportions, particularly in profile.
- Absence of mandibular hyperplasia or disease : a good candidate must have bone structure compatible with added volume. Prognathism, mandibular hyperplasia or associated bite problems are more appropriately addressed through maxillofacial surgery. Clinical examination and, if needed, radiological analysis exclude these contraindications.
Skin and tissue criteria
- Firm skin with a good blood supply : firm, well-perfused skin without major laxity is essential for filler stability and a natural result. In older patients, excessive skin laxity can affect results and require combined treatments (radiofrequency, focused ultrasound or collagen stimulators).
- No excess submental fat : excess fat beneath the chin (a double chin) can impair definition of the lower third of the face, even when the chin is projected. Prior or complementary treatment is recommended for these patients to optimise the overall aesthetic result.
Psychological criteria for chin injections
- Psychological maturity and realistic expectations : patients must understand that non-surgical genioplasty provides subtle correction rather than radical change. Unrealistic expectations or disproportionate requests are warning signs. A good candidate can envisage a natural result consistent with their anatomy.
- Desire for reversibility and acceptance of maintenance : non-surgical genioplasty results are temporary. Maintenance injections are needed every 12 to 18 months depending on metabolism and product type. Patients seeking a permanent solution are not good candidates for this medical approach.
- Emotional stability : a brief psychological assessment is essential to identify risk factors such as body dysmorphic disorder, emotional instability or strong social pressure.
Ideal candidates for non-surgical genioplasty
In Geneva and elsewhere, several patient groups fully meet injection genioplasty criteria.
- Young adults with a moderately receding chin.
- Women seeking a more harmonious, refined face.
- Men seeking a more masculine face.
- Patients with moderate lower facial volume loss related to weight loss or natural ageing.
- People who have undergone non-surgical or surgical rhinoplasty and wish to balance their profile.
These patients share common characteristics : compatible anatomy, reasonable expectations and a considered approach.
Cases unsuitable for non-surgical genioplasty
Some patients are unsuitable for this technique. The doctor must identify them and refer them elsewhere if necessary.
- Very receding or deformed chins, for which surgery is indicated.
- Prognathism or joint disorders.
- Significant lower facial skin laxity.
- Body dysmorphic disorder, external pressure or psychological instability.
- Documented hyaluronic acid allergies or a history of granuloma.
Facial ageing and the relevance of non-surgical genioplasty
With age, the chin undergoes several structural changes that can make some people eligible for non-surgical genioplasty later in life.
- Mandibular bone loss : age-related bone resorption can cause chin recession even in patients without previous retrogenia. This loss of bone support affects the lower third, changing proportions and mandibular definition.
- Soft tissue laxity : skin and muscles lose tone over time, encouraging jowls, disrupting facial oval continuity and visually reducing chin projection. In patients with moderate skin laxity, hyaluronic acid non-surgical genioplasty partly restores profile alignment and lower facial support. The ideal candidate nevertheless retains sufficient skin tone for satisfactory non-surgical results. In other cases, particularly marked laxity, distinguishing medical treatment indications from those requiring a face and neck lift is essential.
The role of profile harmonisation in patient selection
The chin should never be assessed in isolation. Medical genioplasty is most meaningful within an overall facial approach known as medical profiloplasty. This comprehensive analysis examines the relationships between the forehead, nose, lips, chin and neckline to restore balance to the profile as a whole.
In this context, Ricketts' aesthetic line is used to assess the position of the chin in relation to the forehead and tip of the nose. It helps identify possible retrogenia, meaning a chin set too far back.
Harmony between the nose and chin is also essential. After rhinoplasty, whether medical or surgical, insufficient chin projection may become more noticeable. In this case, medical genioplasty can be offered to restore aesthetic balance between the different parts of the face.
It is also important to consider the lower lip and cervicomental angle. A prominent lower lip or a poorly defined junction between the neck and chin can falsely suggest a recessed chin. The doctor must therefore establish that the problem originates in the chin itself.
Common mistakes when patients assess their own chin
Patients, often influenced by social media or edited images, may wrongly identify themselves as non-surgical genioplasty candidates. The doctor's role is to reassess the indication.
- Confusing a receding chin with excess fat : a double chin may result from fat accumulation or skin laxity rather than bone deficiency. Hyaluronic acid injection then offers no benefit and may even increase heaviness.
- Wanting to “slim” the face with injections : some patients expect facial slimming from non-surgical genioplasty. However, the technique adds volume. It therefore structures and reshapes rather than slimming.
- Demanding radical transformation : when a patient wishes to profoundly change facial structure, bone surgery may be necessary. Hyaluronic acid non-surgical genioplasty is then inappropriate. The doctor must clearly explain this distinction, support the patient rigorously and offer suitable alternatives where possible.
Aesthetic expectations of non-surgical genioplasty according to sex
Perceptions of an “ideal” chin vary according to sex, the aesthetic standards of each era and overall facial morphology. A good candidate for medical genioplasty is also defined by the desired visual identity.
Most men considering medical genioplasty want to enhance the masculinity of their profile. This generally means greater forward projection of the chin, a more angular jawline and better definition of the junction between the chin and mandible. Medical genioplasty can therefore be combined with injections along the jawline, a technique called jawline contouring. The ideal candidate has a slightly underdefined face, without significant skin laxity or excess fat beneath the chin.
Women's expectations differ, focusing more on elegance and balance. Correction of a recessed chin or an underdefined jawline is often central to the request. An overly understated chin can accentuate a prominent nose or compromise facial harmony. Female patients generally seek more defined facial contours, a smooth transition between the lips, chin and neck, and a discreet, natural and delicate result.
In every case, the doctor will respect the aesthetic characteristics specific to each sex, particularly avoiding overly angular or prominent contours in women.
