Medically reviewed by Dr Sin Yong · Last reviewed · 10 min read · Jump to questions
Published 25 October 2026 · Reviewed by Dr Sin Yong

Chin and jaw filler can be dissolved if it is hyaluronic acid, but these areas are also often treated with calcium hydroxylapatite or polycaprolactone, which do not dissolve. Dr Sin Yong scans the chin and jawline with ultrasound to see what is there, dissolves hyaluronic acid in stages, and plans other materials differently.
Part of Filler Problems →
Filler in the chin and jaw is meant to add structure: a little more projection to a receding chin, or definition along the jawline. Over time, or after several top-ups, the same filler can work against the face. These are the concerns patients describe most often.
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| What you notice | What it often is | First step |
|---|---|---|
| A chin that juts forward or looks long | Too much projection, often from filler added over several visits | Ultrasound to see what and how much is there |
| A wide, square or heavy lower face | Filler along the jawline that has built up or spread | Mapping both sides of the jaw |
| A lower face that looks heavier or dragged down | Volume that the face can no longer carry, sometimes combined with loose skin | Separating filler from laxity before planning |
| A lump on the chin or along the jaw | Product that has clustered, sits too superficially, or a collagen-stimulator nodule | Ultrasound to identify the material |
| One side fuller than the other | Uneven amounts, or filler that has moved | Mapping, then treating the fuller side |
| A firm, tender or red lump months later | A delayed inflammatory nodule | Medical assessment first |
Hyaluronic acid chin filler is well studied. In a systematic review of 917 patients, the commonest side effects were injection-site reactions such as swelling and bruising, and major complications were rare (Ou 2023); in a randomised trial, tenderness and firmness were the commonest reactions (Beer 2021). When problems persist, it is usually because of the amount, the material or where it sits.
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The chin and jaw sit on bone and carry a lot of movement, so firm fillers are often chosen for them: calcium hydroxylapatite, a stiff hyaluronic acid, or a combination (Moradi 2019). That is why the material question matters more here than almost anywhere else in the face.
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| Material | Example | Dissolved by hyaluronidase? | What is considered |
|---|---|---|---|
| Hyaluronic acid | Firm hyaluronic acid chin and jaw fillers | Yes | Staged, ultrasound-guided hyaluronidase |
| Calcium hydroxylapatite | Radiesse | No | Mapping; options set by what the scan shows (McCarthy 2024) |
| Polycaprolactone | Ellansé | No | Mapping; the Sculpting mode of Time Freeze Laser LCLR® for nodules or excess; see Ellansé removal |
| Poly-L-lactic acid | Sculptra | No | Mapping; the Sculpting mode of Time Freeze Laser LCLR® for nodules or migrated product |
| A mix | Different products over the years | Only the hyaluronic acid part | Hyaluronic acid dissolved first, then the rest reassessed |
Dr Sin Yong uses whichever filler suits a particular chin when he adds volume, so he sees all three in correction work. On ultrasound they look different: hyaluronic acid shows as dark pockets, calcium hydroxylapatite as bright deposits, and polycaprolactone as deposits with bright specks inside them (Wortsman 2015; Wortsman 2017).
“A biostimulator cannot be dissolved. That single fact should shape every decision about using one.”
Dr Sin YongOn collagen-stimulating fillers in the chin and jaw
The chin has important blood vessels close to where filler is placed. Ultrasound can map them before any injection (Schelke 2018), which helps plan the path of the needle. Dr Sin Yong performs the scan and any injection himself in the same visit.

Hyaluronic acid products differ in how easily the enzyme breaks them down (Landau 2015), and the firm fillers used in the chin and jaw can need more of it than softer lip or under-eye fillers. That does not mean using a large dose at once. The enzyme is placed into the mapped deposit, the area is reviewed at about 48 hours, and further doses are titrated to what remains (King 2018).
Where the chin projects too far and the jaw looks wide, the two are often dissolved in steps, with a review between them, so that the balance between chin and jaw can be judged rather than guessed.
Previous reactions to hyaluronidase and bee or wasp sting allergy are asked about, and a skin test is offered where there is any concern. Non-urgent dissolving is deferred in pregnancy and while breastfeeding, and while there is infection in the area. Refilling, if wanted, waits at least two weeks.
Calcium hydroxylapatite, polycaprolactone and poly-L-lactic acid do not respond to hyaluronidase; the body breaks them down by other, slower processes (Wollina 2024). In a series of 55 complications from collagen-stimulating fillers, lumps were the most common problem, they were often persistent, and hyaluronidase helped only where hyaluronic acid had been mixed in (Ianhez 2024). In a review of 5,081 calcium hydroxylapatite treatments, 3% had adverse events, nearly all of them nodules, and most resolved (Kadouch 2017). Accumulations that persist are managed according to what imaging shows, and published approaches are set out in a structured way (McCarthy 2024). For excess collagen-stimulator material, Dr Sin Yong uses the Sculpting mode of Time Freeze Laser LCLR®, his own protocol, which is built to target excess material with no incision.
Dr Sin Yong uses the Sculpting mode for nodules large and small as well as for diffuse excess; how each responds varies. An inflamed or infected lump is treated medically first. Lumps after calcium hydroxylapatite are covered in Radiesse lumps, and the laser mode itself in the Sculpting mode of Time Freeze Laser LCLR®. Collagen-stimulator lumps are compared on collagen-stimulator nodules and migration.
Not every wide jaw or heavy chin is filler. A strong chewing muscle, the shape of the jaw bone, fat under the chin and loose skin along the jawline can all look like too much filler, especially in photographs. Dissolving cannot change any of these, so the scan and examination come first.
Like any medical treatment, each option has its own risks and limits, which Dr Sin Yong explains at the assessment alongside the alternatives, including no treatment.
Urgent: skin on the chin or lower lip that turns pale, dusky or mottled, or pain that is getting worse after filler, needs urgent assessment by the doctor who injected you, or at A&E. See the warning signs of a blocked blood vessel after filler.
Many patients who come to see Dr Sin Yong about chin and jaw filler problems tell him they have tried almost everything else and had given up hope. Having tried other treatments does not, on its own, rule out further options; what can be done depends on what the scan shows.
That history is useful. Knowing what was injected, when, and what has already been tried often explains why a problem has stayed: hyaluronidase acts only on hyaluronic acid and only where it reaches, some fillers are not hyaluronic acid at all, and swelling or fluid can look like filler. Ultrasound helps show which of these applies, and the plan starts from there. For material that cannot be dissolved, Dr Sin Yong uses the Sculpting mode of Time Freeze Laser LCLR® for nodules large and small, without an incision. How each person responds varies.
If you have been told nothing more can be done, it is still worth having the area scanned: ultrasound helps show what is there, and what, if anything, can be done is discussed from that. Bring any records of past treatments, product names and dates if you have them. More on this is in when filler dissolving has not worked.
He maps first, treats the material that is actually there, and corrects in stages so that the balance of the lower face can be judged as it changes. He examines you, performs the scan and carries out the treatment himself, and sets out the plan and what decides the fee in writing. You do not need to have been treated here.
How chin filler itself is planned is covered in the chin filler guide. Dissolving in other areas is covered in filler dissolving in Singapore.
Every treatment is performed by Dr Sin Yong personally. Singapore Medical Council registered · invited to share his clinical expertise internationally for CLASSYS, DEKA, Fotona, Hironic and Ilooda.
Book a chin and jaw filler assessment with Dr Sin Yong on Orchard Road. How consultations work.
WhatsApp Dr Sin Yong →or use the enquiry formIf it is hyaluronic acid, yes. Hyaluronidase breaks it down, usually in stages with a review at about 48 hours. If the chin was treated with calcium hydroxylapatite or polycaprolactone, which are also used in this area, the enzyme has no effect and a different plan is needed. Ultrasound shows which material is present before anything is injected.
Many of the patients Dr Sin Yong sees have tried other treatments first. A treatment that did not help can still leave options open: hyaluronidase may not have reached the filler, the filler may not be hyaluronic acid, or what looks like filler may be swelling or fluid. Ultrasound helps show which applies, and the plan follows what it finds. What can be done varies from person to person.
Hyaluronic acid along the jaw can be dissolved, often side by side in stages so the balance can be judged. Collagen-stimulating fillers cannot be dissolved; for excess material and for nodules large and small, Dr Sin Yong uses the Sculpting mode of Time Freeze Laser LCLR®, without an incision.
Too much forward or downward projection is usually filler added over several visits. Ultrasound helps show how much there is and what it is. If it is hyaluronic acid, the excess can be dissolved in stages, reviewing the balance with the nose and lips at each step. If it is a collagen stimulator, the options are discussed individually.
Filler placed along the jaw adds width as well as definition, and repeated top-ups or spread of the product can make the lower face look square or heavy. A strong chewing muscle or the bone shape can add to it. The scan and examination separate filler from muscle and bone, because dissolving can only change the filler.
It can be. Fillers designed for the chin and jaw are usually firmer, and hyaluronic acid products differ in how easily the enzyme breaks them down (Landau 2015). That is managed by titrating the dose to effect over staged visits rather than injecting a large amount at once (King 2018).
Yes, if you still want it and it suits the face, but not on the same day. Published guidance recommends waiting at least two weeks after hyaluronidase, until the swelling has settled, before refilling (Murray 2021). Sometimes the answer is a smaller amount placed more precisely, and sometimes no new filler at all, depending on what the review shows.
That is common, especially after treatment overseas or several years ago. Ultrasound helps tell the materials apart: hyaluronic acid looks like dark pockets, calcium hydroxylapatite looks bright, and polycaprolactone shows bright specks within the deposit (Wortsman 2015; Wortsman 2017). Bring any records, product stickers or messages from the clinic if you have them.
A lump after chin filler is usually product that has clustered or sits too superficially, or a collagen-stimulator nodule. Occasionally it is something else, such as a cyst, or a lymph node under the chin or jaw, which ultrasound helps identify. A lump that becomes red, hot or tender needs prompt medical assessment.
Each injection is a brief sting from a fine needle, and the chin can feel tender afterwards. Swelling and small bruises are common and settle. Contact the clinic if swelling increases, itching spreads or the area becomes hot or painful, because these can be signs of a reaction or infection.
Dissolving removes filler; it does not loosen skin. If the filler was supporting tissue that has loosened with age, that laxity may show more once the excess has gone. This is discussed at the assessment, and lifting options are considered separately once the filler has been dealt with.
The Use of Hyaluronidase in Aesthetic Practice (v2.4). Journal of Clinical and Aesthetic Dermatology, 2018. source
Hyaluronidase Caveats in Treating Filler Complications. Dermatologic Surgery, 2015. source
Nonsurgical Chin Augmentation Using Hyaluronic Acid: A Systematic Review of Technique, Satisfaction, and Complications. Aesthetic Plastic Surgery, 2023. source
Safe and Effective Chin Augmentation With the Hyaluronic Acid Injectable Filler, VYC-20L. Dermatologic Surgery, 2021. source
Nonsurgical Chin and Jawline Augmentation Using Calcium Hydroxylapatite and Hyaluronic Acid Fillers. Facial Plastic Surgery, 2019. source
Identification and Complications of Cosmetic Fillers: Sonography First. Journal of Ultrasound in Medicine, 2015. source
Ultrasound Morphology of Polycaprolactone Filler. Journal of Ultrasound in Medicine, 2017. source
Ultrasound to improve the safety of hyaluronic acid filler treatments. Journal of Cosmetic Dermatology, 2018. source
Calcium hydroxylapatite: A review on safety and complications. Journal of Cosmetic Dermatology, 2017. source
A Structured Approach for Treating Calcium Hydroxylapatite Focal Accumulations. Aesthetic Surgery Journal, 2024. source
Complications of collagen biostimulators in Brazil: Description of products, treatments, and evolution of 55 cases. Journal of Cosmetic Dermatology, 2024. source
Spontaneous and induced degradation of dermal fillers: A review. Journal of Cutaneous and Aesthetic Surgery, 2024. source
About this page: written and medically reviewed by Dr Sin Yong, MBBS (NUS), MRCS (Edinburgh) · Last reviewed 26 October 2026 · Illustrative images only, not patients · Editorial policy
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