Most visible reduction occurs within 24 to 48 hours of hyaluronidase injection. Some areas may continue to settle over 7 to 14 days. A review at 2 weeks confirms the dissolution outcome. In some cases a second dissolution session is required. The full process from initial assessment to final settled outcome typically spans 2 to 6 weeks.
Why Dissolving Has a Timeline at All
Hyaluronidase works by breaking down the cross-linked hyaluronic acid that gives dermal filler its structure. The enzyme reaches the filler material, cleaves the bonds that hold it together, and the broken-down hyaluronic acid is then absorbed by surrounding tissue and metabolised through the body’s normal pathways.
This is not an instant process. The enzyme needs time to diffuse through the tissue and reach all the filler material. The breakdown products need time to be absorbed. Tissue swelling from the dissolution itself adds another variable. The result is that visible change is gradual rather than immediate, and assessment of the dissolution outcome requires a review at 2 weeks rather than at the end of the appointment.
The First 24 Hours
Immediately after hyaluronidase injection, the treated area typically shows mild swelling, tenderness, and sometimes redness at the injection sites. This is the normal post-injection response and is not a sign of dissolution failure.
The filler may appear slightly less defined within hours, but full visible reduction is not yet apparent. Some patients describe a sensation of softening in the treated area as the enzyme begins to break down the filler material. Others notice no change in the first 24 hours.
Mild bruising at injection sites is possible. Swelling typically peaks at 12 to 24 hours then begins to settle. During this period, the visible appearance is dominated by the post-injection response rather than by the dissolution effect.
Days 2 to 7
This is the most active period of visible change. As post-injection swelling settles, the dissolution effect becomes apparent. The treated area generally appears less full, less defined, or less projected than before.
The pace of change is not uniform. Some patients see most of the change within the first 3 to 4 days. Others experience a slower settling that continues across the full week. The variation is normal and reflects differences in tissue composition, filler product type, original placement depth, and the individual response to hyaluronidase.
During this period, continuing tenderness, mild bruising, and intermittent swelling are common. Cold compresses and gentle aftercare are appropriate. Strenuous exercise and alcohol are typically avoided for the first 48 hours.
Days 7 to 14
By the end of week one, the broad shape of the dissolution outcome is usually visible. Subtle settling continues over the second week as the broken-down filler is fully absorbed and any residual swelling resolves.
This is the period during which patients often have the strongest emotional response to the change. Going from a familiar appearance with filler to the dissolved state can be psychologically jarring even when the dissolution is the clinically appropriate outcome. The change is real and may be more pronounced than the patient expected.
The 2-week mark is the conventional point for clinical review. By this stage the result has stabilised enough to assess whether the dissolution achieved the intended outcome and whether further dissolution is needed.
The 2-Week Review
The 2-week review is the appointment at which the dissolution outcome is formally assessed. Photographs from before treatment, immediately after, and at 2 weeks are compared. The clinical question is whether the dissolution has achieved the intended result.
In many cases, a single dissolution session produces the expected outcome and no further treatment is required. The patient and practitioner discuss next steps, which may include: leaving the area to settle further over the following weeks, planning a fresh treatment with different placement or product approach, or pursuing additional dissolution if residual filler remains.
The review is also the appointment at which any complications are discussed. Persistent asymmetry, prolonged swelling, or unexpected appearance changes are documented and managed at this stage.
When a Second Dissolution Session is Needed
Some areas require more than one dissolution appointment. This is more common when: the original filler was placed deeply, large volumes were involved, the filler is more cross-linked or denser, or complete removal of all filler material is the goal.
A second session is typically scheduled 2 to 4 weeks after the first, depending on the clinical assessment at the 2-week review. The interval allows the first dissolution to complete and any residual swelling to settle, so the second session targets only the residual filler rather than acting on already-dissolved tissue.
Multiple sessions are not a sign that the first session failed. They reflect the realistic clinical pattern that complete dissolution of large or deep filler often requires staged treatment.
Settling Over Weeks 3 to 6
After the 2-week review, the area continues to settle over the following weeks. Subtle adjustments to skin texture, surface contour, and tissue feel may continue to evolve as the body completes absorption of the broken-down filler.
For patients who plan to have fresh treatment after dissolution, this is the period during which the practitioner will assess whether the tissue has stabilised enough for re-treatment. Treating into a still-settling area produces less predictable results.
For patients who do not plan further treatment, this is the period during which the final dissolved appearance becomes apparent. The face has returned to its pre-filler structure plus any natural age-related change that occurred during the period the filler was in place.
Variation Between Patients
Two patients with the same filler in the same area may show different dissolution timelines. The variables include: the amount of filler originally placed, the depth of placement, the product brand and cross-linking density, the tissue characteristics of the patient (skin thickness, vascularity, fat distribution), the patient’s metabolic rate, and individual response to hyaluronidase.
This variation is part of the reason a 2-week review is built into the protocol rather than relying on the patient’s own assessment of when they think dissolution is complete. The clinical view at 2 weeks accounts for these variables and identifies whether the timeline is progressing as expected.
Where a patient’s response is significantly slower or faster than the typical pattern, this is documented and discussed. It informs any future treatment planning.
Emergency Versus Elective Dissolution
The dissolution timeline differs between emergency dissolution (urgent vascular event response) and elective dissolution (planned correction of unsatisfactory filler).
In an emergency vascular event, hyaluronidase is administered immediately and at higher doses. The timeline is compressed: visible change may begin within hours and full resolution within 24 to 48 hours, because the priority is rapid restoration of blood supply rather than measured dissolution.
In elective dissolution, the timeline described on this page is the relevant pattern. The dose, technique, and review structure are calibrated for considered correction rather than urgent intervention. The 2-week review is appropriate. The risk profile is different. The patient experience is different.
Most patients seeking dissolution are in the elective category. Emergency dissolution is rare and is managed under separate clinical protocols.
Aftercare Across the Timeline
Aftercare for dissolution follows similar principles to aftercare for filler treatment itself. The first 24 to 48 hours involves avoiding strenuous exercise, alcohol, and pressure on the treated area. Gentle cold compresses can manage swelling and tenderness.
Thereafter, the patient resumes normal activity but continues to monitor for any unexpected change. Worsening pain, unexpected colour change, signs of infection, or any symptom that does not match what was discussed at consultation warrants prompt contact with the clinic.
Makeup, sun exposure, and routine skincare can typically resume within 24 hours unless specific advice was given otherwise. Sun protection is particularly important during the dissolution period when the skin is more sensitive.
Why the 2-Week Review Matters Even if You Feel Settled
Some patients feel that the dissolution has settled by day 5 or 7 and consider the process complete. The 2-week review is still the appropriate appointment to attend.
The review provides clinical assessment, not just patient self-assessment. Subtle changes that are not obvious in the mirror may be apparent in clinical photography or to a trained observer. The review documents the outcome for the clinical record. The review is the formal opportunity to plan any subsequent treatment.
Missing the 2-week review can result in a window during which the practitioner has no view of the result, which can complicate later treatment planning if the patient returns months later for a different concern.
How This Operates at Core Aesthetics
Dissolution at Core Aesthetics is conducted by Corey Anderson, AHPRA registered nurse, NMW0001047575. Hyaluronidase is carried on-site for both elective dissolution and emergency vascular event response. The clinical protocol includes pre-dissolution photography, structured dose calibration based on the filler being dissolved, and the 2-week review built into the standard treatment plan.
For patients seeking dissolution after work performed elsewhere, the consultation includes review of any available records about the original treatment, anatomical assessment of the current state, and discussion of realistic outcomes from dissolution. Where the original treatment is unknown or undocumented, the assessment is based on clinical examination alone.
The goal is consistent across cases: a measured, reviewed dissolution that achieves the clinically intended outcome and provides a stable foundation for any subsequent treatment decision.
Is this for you?
Consider booking a consultation if
- Patients planning elective dissolution and wanting to understand the timeline
- Patients who have had dissolution scheduled and want to know what to expect at each stage
- Patients comparing clinics and including dissolution protocol structure as part of that decision
- Patients who have had dissolution elsewhere and want to understand whether their experience was within the typical pattern
This may not be for you if
- Anyone under 18 years of age
- Patients seeking specific clinical advice about an individual dissolution decision, this requires individual consultation
- Patients in immediate medical distress, contact emergency services or attend the nearest emergency department
- Patients seeking a guaranteed timeline, dissolution timing varies between individuals
- Patients seeking same-day dissolution and re-treatment, these are scheduled as separate appointments
Suitability is confirmed at consultation. This list is general guidance, not a substitute for clinical assessment.
Frequently asked questions
How long until I see the dissolved result?
Most visible reduction occurs within 24 to 48 hours, with continued settling across days 2 to 7. The result is typically stable enough to assess at the 2-week review. Some patients see most of the change in the first 3 to 4 days. Others see a slower settling across the full 2 weeks. Variation is normal.
Will I need more than one dissolution appointment?
Some patients do, particularly when large volumes of filler were originally placed, the filler was placed deeply, or complete removal is the goal. A second session, if needed, is typically scheduled 2 to 4 weeks after the first. The decision is made at the 2-week review based on what residual filler remains.
Is dissolution painful?
The injection sensation is similar to filler injection itself, brief and tolerable for most patients. The treated area is typically tender for 24 to 48 hours afterwards. Mild swelling and bruising are common. Severe or worsening pain is not expected and warrants prompt contact with the clinic.
Can I have new filler at the same appointment as dissolution?
No. The dissolution and any fresh treatment are scheduled as separate appointments, typically 2 to 6 weeks apart depending on the area and the clinical assessment at the 2-week review. Treating into a still-dissolving area produces less predictable results.
Will my face go back to exactly how it was before filler?
The dissolution returns the face to its pre-filler structure plus any natural age-related change that occurred during the period the filler was in place. If filler was in place for 12 months, the face will reflect 12 months of natural ageing on top of the pre-filler baseline. Some patients find this difference more pronounced than expected.
Is dissolution covered by Medicare or private health insurance?
Cosmetic dissolution is not covered by Medicare or standard private health insurance. Costs are discussed at consultation. Dissolution after a vascular event in the context of a complication is managed clinically and the cost structure is explained at the time.
What if I do not want to attend the 2-week review?
The 2-week review is the appropriate appointment for assessing the dissolution outcome. Skipping it means the practitioner has no clinical view of the settled result, which complicates any subsequent treatment decision. Patients are encouraged to attend the review even if they feel the result has already settled.