Filler Dissolution
Hyaluronidase is an enzyme that dissolves hyaluronic acid (HA) filler. It is used to correct overfilled or misplaced HA filler, manage complications, or reverse a prior result the patient no longer wants. Dissolution requires a consultation and is not always straightforward.
What filler dissolution is
Hyaluronidase is an enzyme that breaks down hyaluronic acid, the base material in most modern dermal fillers. When injected into or near a hyaluronic acid filler deposit, it accelerates the filler's breakdown and clearance. It is used when HA filler needs to be corrected or removed — whether due to overfilling, migration, asymmetry, delayed-onset nodules, or vascular compromise.
What filler dissolution can address
Common indications include: overfilled or disproportionate results from prior HA filler treatment, filler that has migrated from the original placement site (particularly under the eyes), delayed inflammatory nodules related to HA filler, and vascular occlusion — a rare but serious complication of filler injection that requires emergency dissolution. Hyaluronidase is only effective on hyaluronic acid fillers; it does not dissolve calcium hydroxylapatite (Radiesse), poly-L-lactic acid (Sculptra), or permanent fillers.
Vascular occlusion — emergency use
If filler is inadvertently injected into or compresses a blood vessel, it can cut off circulation to the tissue supplied by that vessel. This is a medical emergency. High-dose hyaluronidase is the primary treatment. If you experience skin blanching, significant pain, skin color changes, or visual disturbance after any filler injection — whether here or elsewhere — seek emergency care immediately. Do not wait.
Who may be a candidate
Anyone who has had hyaluronic acid filler placed and is seeking correction, reversal, or treatment of a complication. A consultation is required to assess the location and type of filler present, as hyaluronidase affects all HA in the treatment zone — including naturally occurring hyaluronic acid in your tissue — not only the product that was placed.
Who should avoid or delay treatment
Dissolution is not appropriate for patients with a known allergy to hyaluronidase or bee venom (hyaluronidase is derived from animal sources in some formulations). Pregnancy and breastfeeding are relative contraindications. Patients with non-HA filler (such as Radiesse or Sculptra) should understand that hyaluronidase will not be effective on those products.
What to expect during a session
After consultation, the area is cleansed and hyaluronidase is injected into the targeted tissue using a fine needle or cannula. The enzyme begins acting within minutes to hours. The area may swell temporarily following injection as the product breaks down and the inflammatory response peaks. In some cases, multiple sessions are needed to fully address the area, particularly with longstanding or dense filler deposits.
Recovery and downtime
Temporary swelling, redness, and bruising at the injection sites are common and typically resolve within several days. The area may look hollow or uneven immediately after dissolution as filler is cleared before any natural swelling subsides. Final assessment of the area should wait four to six weeks for full equilibration. Refilling — if desired — should not be done until the hyaluronidase has fully cleared, typically one to two weeks minimum.
Risks and side effects
Common: temporary swelling, bruising, and redness. Hyaluronidase also dissolves naturally occurring HA in the tissue, which can cause temporary depletion or slight hollowing beyond the filler being targeted. Rare: allergic reaction, including hypersensitivity in patients sensitive to bee venom or animal-derived products. A sensitivity test dose may be appropriate in patients with relevant allergy history.
What happens after dissolution
Once filler is dissolved, you return to your baseline anatomy in the treated area — which may appear different than it did before you originally had filler placed. If you wish to have the area refilled, this should be discussed at a follow-up consultation after adequate healing time. We do not automatically refill after dissolution; the situation that prompted dissolution should be fully understood before additional filler is placed.
How long dissolution takes
Hyaluronidase acts relatively quickly — significant filler reduction is typically visible within 24 to 72 hours. Complete clearance of a large HA deposit may take longer, and results of the full dissolution may not be fully assessed until four to six weeks later. In rare cases, dense or old filler may require multiple treatment sessions.
When to contact us
Contact us if you experience signs of an allergic reaction after hyaluronidase treatment, including hives, facial swelling, or difficulty breathing — seek emergency care immediately. Contact us if you believe you may have had a vascular complication from a filler injection anywhere — this requires urgent assessment and treatment.
Clinical notice
Information on this page is educational and does not replace an in-person consultation. Treatments are recommended only after reviewing medical history, anatomy, goals, and clinical suitability. Results vary. Appropriate candidates are determined at the time of consultation.
If you experience severe swelling, vision changes, difficulty breathing, signs of vascular compromise, or another urgent symptom after treatment, seek emergency care immediately.
Ready to schedule a consultation?
Schedule a Consultation