With the advancement of medical beauty technology, people are pursuing their own face shape more and more. Among the many facial contours, not only the facial features are important, but the position of the jawline is particularly critical. A smooth facial contour will be more attractive. It is not only the dividing line of the facial contour, but also reflects the tightness of the face.
The filling of the jawline can make your chin line clearer, the side face more three-dimensional, and look more energetic and younger; it is especially effective for some people with mild sagging or unclear face shape.
Therefore, in recent years, "jawline filling" has become one of the hot projects in the field of medical beauty. So, how does Jawline Filler work?
What is Jawline Filler?
Jawline Filler is a non-surgical plastic surgery method that improves facial contours and enhances the clarity of jawlines by injecting filling materials into the jawline.
Jawline filling is generally done by using a blunt needle to inject some special filling materials into it, so that the chin edge line is clearer and the facial contour is more three-dimensional. Change the facial contour without surgery to achieve contour optimization.
It is a type of micro plastic surgery, mainly using fillers such as hyaluronic acid (HA), polylactic acid (PLLA), and calcium hydroxyapatite (CaHA) to make facial lines clearer and side profiles more three-dimensional, thereby creating an ideal smooth jawline.
How does Jawline Filler work?

The core mechanism of Jawline Filler is volume remodeling and support.
When the filler is injected into the jawline area, it will occupy a certain space and play a physical support role, thereby changing the original facial contour structure.
Three-dimensional support:
Many people have unclear jawlines, perhaps because they are born with a round face or because of age, the skin begins to loosen. Injecting fillers in is like "supporting" a bracket, helping you fix the facial lines and make the contours clearer.
Shaping and sculpting:
Doctors can use precise injection techniques and, according to aesthetic standards, inject fillers into key areas such as the jawline angle, the outer edge of the chin, and the chin to shape the contour.
Improve facial proportions:
Some people have unbalanced proportions, such as a long middle face and a short lower face. Filling can also adjust facial proportions, making facial features more coordinated and more visually attractive.
Partial firming effect:
To a certain extent, fillers can provide upward support, which helps to lift loose tissues, thereby improving minor sagging problems, such as early double chins or loose corners of the mouth.
Ideal Candidates for Jawline Filler
Not everyone is suitable for Jawline Filler, but the following groups of people will benefit significantly from it:
- People with blurred contours: those with evenly distributed facial fat but lack of jawline and round face;
- People with mild facial sagging: With aging, collagen loss leads to tissue sagging and unclear facial boundaries;
- People with naturally unclear jaw angles: soft facial structure and vague chin line;
- People who want to improve side face contours: pursue a more three-dimensional side face effect;
- People who want to adjust neutral contours: men want to enhance masculine lines, while women pursue soft but clear facial edges.
For those with severe skin laxity or a lot of fat accumulation in the neck, filling alone may have limited effect.
Material selection and differences for jawline filling
In the market and in the clinic, different materials are suitable for different needs, and the effects will be slightly different.
Hyaluronic acid (HA)
This is the most common filler. As we all know, hyaluronic acid has a soft texture, high safety, and generally lasts for 6-12 months. It is suitable for mild contouring and can be dissolved after surgery. If the effect is not satisfactory, it can be adjusted.
Poly-L-lactic acid (PLLA)
After injection, it stimulates your own collagen to slowly generate, the effect is more natural, and the duration is longer.
Calcium hydroxyapatite (CaHA)
Its characteristics are different from the previous two. Its texture is large particles and strong support. It is more suitable for people who want obvious lines, such as boys who want a "tough feeling". The duration is about 12 to 18 months.
What is the process of jawline filling
How to fill the jawline? In fact, the filling time of the jawline is very short. A standard Jawline Filler injection process includes,
Before injection: the doctor will look at your face shape, communicate with you about the areas you want to improve, and determine the injection plan.
It is also a step before injection, disinfection and local anesthesia: the injection site is fully disinfected and local anesthetic is injected to reduce discomfort during the process.
Start injection, precise injection: inject filler in layers through a syringe or blunt needle, pinch and shape while injecting to ensure natural and smooth lines.
Postoperative cold compress and care: apply short cold compress after injection to relieve swelling.
Advantages of Diaminy Hyaluronic Acid Fillers

Advanced cross-linking technology, longer lasting
Diaminy uses hyaluronic acid cross-linking technology to make the filler structure more stable. Compared with ordinary products, the effect after injection lasts longer, and the contour is fuller and more natural.
High cost performance
Provides a variety of fillers, which can meet the needs of fine line repair to deep shaping, meet the injection needs of multiple areas of the face and body, and doctors have more flexibility in choice.
High safety
Using high-quality raw materials, the product is highly pure, with few side effects after injection and fast recovery after surgery.
Natural shaping effect
The gel has a uniform texture, and the filling lines are natural after surgery, which will not bring obvious abruptness to patients.
Types of Diaminy Hyaluronic Acid Filler
Category |
Molecular Features |
Applicable Areas |
Functional Features |
Fine Line |
Small molecules |
Lips, under eyes, tear grooves, and other delicate areas |
Improve fine lines, tear grooves, and mild lip shaping |
Derm |
Medium molecules |
Nasal folds, mouth corners, mid-cheeks |
Mid-layer filling, lift mild to moderate depressions |
Deep |
Large molecules |
Cheeks, chin, nose, and other deep tissues |
Adjust facial structure, provide support and volume |
Ultra |
Ultra-large molecules |
Chest, buttocks, and other large-volume areas |
Provide significant volume and long-lasting shaping effects |
How long does the effect of Jawline Filler last?
How long the effect lasts depends mainly on what material you use, how deep the injection is, and your own metabolic rate:
- Hyaluronic acid: The basic effect is about 6-12 months;
- PLLA: The duration is longer than that of hyaluronic acid, stimulates collagen, and the effect lasts for 1-2 years;
- CaHA: Strong support, lasts for 12-18 months;
It is generally recommended to perform a supplementary injection once a year according to the situation to maintain the best condition.
Postoperative care and possible side effects

The recovery period after jawline filler is short, but proper care is crucial:
· Do not rub or press the injection site within 24 hours;
· Do not do strenuous exercise within a week, and avoid high temperature environments, such as steam saunas;
· Do not put on makeup immediately, and keep the injection site clean;
· Take some anti-inflammatory drugs according to the doctor's advice (if necessary);
· Avoid spicy and irritating foods in diet, and lighter foods are better.
The difference between Jawline Filler and Jawline Thread Lift and surgery
Item |
Filler |
Thread Lift |
Surgery (Bone Cutting/Jaw Angle Surgery) |
Degree of Trauma |
Minimally invasive, pinhole |
Minimally invasive, slight pulling feeling |
Large trauma, recovery period required |
Effects Appear |
Immediately effective |
Immediate effect + collagen regeneration |
Appear after recovery, about 2–3 months |
Duration |
6 months – 2 years |
1 – 2 years |
Permanent structural changes |
Recovery Period |
Fast, 1–3 days for basic recovery |
About 3–7 days |
Need to rest for 2–4 weeks |
Suitable for People |
Mild to moderate contour adjustment |
Moderately loose skin or jawline |
Severe structural problems, bone-like shaping |
Conclusion: Jawline Filler is a key step in contour refinement
Don't want to go under the knife but want to make your face more three-dimensional and more elegant? Then jawline filling is really a good choice for you. It can not only quickly make the face clear, but also slightly lift and improve relaxation.
The key is to choose the right product and professional doctor with the great injection plan.
Ready to enhance your natural beauty with safe, long-lasting results?
Choose Diaminy Hyaluronic Fillers — professionally engineered for precision, performance, and purity.
Click lick today to learn more or place your order.