Sometimes filler no longer suits your goals. You may notice persistent puffiness, an uneven contour, fullness beyond the intended treatment area, or a result that simply does not feel like you.
Before adding more product—or deciding to dissolve everything—the first step is understanding what is causing the concern.
What does hyaluronidase do?
Hyaluronidase is an enzyme that breaks down hyaluronic acid, or HA. It can be injected to reduce unwanted HA filler.
Hylenex is one formulation used for this purpose. Although Hylenex is an FDA-approved medication, using it to dissolve cosmetic filler is off-label: this specific use is outside its approved prescribing indications.
Hyaluronidase does not dissolve every injectable material. It cannot reverse Sculptra, Radiesse, or the permanent PMMA component of Bellafill.
When might dissolving be appropriate?
Reasons to consider dissolving HA filler include persistent swelling related to the filler, an unwanted contour, superficial placement, migration, or a change in your aesthetic preferences.
However, not every lump, shadow, or swollen area needs hyaluronidase. Infection, inflammatory reactions, normal anatomy, and other causes may require a different approach.
During assessment, I review your treatment history, examine the area, and discuss what dissolving is reasonably likely to improve. Previous photographs and product information can be helpful.
What happens during treatment?
Hyaluronidase is injected into the areas selected for treatment. The amount and placement depend on the concern, location, and suspected filler.
The enzyme begins acting promptly, but swelling can make the early appearance difficult to interpret. Some patients need more than one session, and precisely removing only a chosen amount of filler is not always possible.
Dissolving is not a guaranteed return to your exact pretreatment appearance. Your tissues may have changed with time, and the original filler may have been masking underlying volume loss or other features.
What are the risks?
Possible reactions include discomfort, redness, bruising, swelling, and allergic reactions. Tell me about previous reactions to hyaluronidase, significant allergies, and bee or wasp-sting reactions so these can be assessed appropriately.
Hyaluronidase can also affect naturally occurring HA in the treated tissues. Although the body continually replenishes its own HA, the appearance and recovery after treatment cannot be predicted through a fixed replacement timeline.
When can you have filler again?
There is no single waiting period suitable for every situation. Refilling should be considered after swelling has settled, the tissues can be assessed, and the reason for dissolving has been addressed.
You may also decide that you prefer the area without additional filler.
What if there is a suspected vascular complication?
Dissolving unwanted filler electively is different from treating a suspected blood-flow problem.
Unusual pain, blanching, dusky discoloration, or mottled skin after filler requires immediate contact with your injector. Vision changes or stroke symptoms require emergency medical attention. Do not delay urgent care while waiting to see your original provider.
At Modern Aesthetics in San Jose, I offer consultations to assess existing filler and discuss whether observation, dissolving, or another approach is appropriate.
Updated October 23, 2026.