Partial dissolution uses a reduced dose of hyaluronidase to break down a fraction of existing filler, refining outcome rather than fully removing it. It is appropriate when the original treatment is partially correct but excessive in volume or migration, when small adjustments to symmetry or definition are needed, or when full dissolution would over-correct. The 2-week review is the structured assessment point.
What Partial Dissolution Is
Partial dissolution is a calibrated intervention. The practitioner uses a reduced dose of hyaluronidase, targeted to specific areas or specific filler material, with the goal of refining the appearance rather than removing the filler entirely.
The distinction matters because complete dissolution and partial dissolution serve different clinical purposes. Complete dissolution is appropriate when the existing work is fundamentally inappropriate (poorly placed, migrated, allergic reaction). Partial dissolution is appropriate when the existing work is partially appropriate but needs adjustment.
The technical approach involves using a fraction of the hyaluronidase dose that would achieve full dissolution. The exact dose depends on the volume and density of filler being adjusted, the area being treated, and the clinical goal. The reduced dose breaks down a proportional amount of the existing filler, with the remainder staying in place.
When Partial Dissolution Is Appropriate
Specific scenarios where partial dissolution is the appropriate clinical choice:
Minor over-volumisation. The filler placement is correct but the volume is slightly more than the anatomy supports. A reduced dose can soften the appearance without removing the underlying support.
Localised migration. A small amount of filler has migrated outside the intended placement. The migrated portion can be dissolved while the correctly placed material remains.
Minor asymmetry. One side of a treatment has slightly more filler than the other. A targeted reduction on the heavier side can restore symmetry.
Lip definition refinement. Lips with previous filler that has lost some shape definition. A small dose to specific areas can sharpen the border without reducing the overall lip volume.
Under-eye refinement. Tear-trough filler that is partially settling well but with one or two specific areas of unevenness. Targeted reduction on those areas can refine the result.
In each case, the alternative of complete dissolution would over-correct. Partial dissolution is a more precise tool when the existing work is mostly appropriate but needs targeted adjustment.
Dose Calibration
The dose of hyaluronidase for partial dissolution is calibrated to break down a target proportion of the filler material. The calibration variables include:
Volume of filler in the treated area. More filler requires more enzyme; less requires less.
Product density. Some hyaluronic acid filler products are more cross-linked and require more enzyme. Others are softer and require less.
Depth of placement. Deeper filler is generally more accessible to enzyme diffusion than superficial filler.
Clinical goal. Adjusting 30 percent of volume requires a different dose than adjusting 70 percent.
The practitioner makes the dose decision based on clinical assessment and experience with the specific product (where known). Where the original product is undocumented, the dose is conservative initially with potential for a second session if needed.
The Difference Between Partial and Complete Dissolution Timeline
Partial dissolution typically shows visible change within 24 to 48 hours, similar to complete dissolution. The settling timeline is similar: most visible change within 7 days, full settling by 2 weeks.
The difference is the magnitude of change. Complete dissolution produces a substantial visible change as the entire filler structure breaks down. Partial dissolution produces a subtler change because only a fraction of the filler is being affected.
For patients accustomed to seeing dramatic results from complete dissolution elsewhere, partial dissolution can initially feel like ‘nothing happened’. The 2-week review is the appointment that confirms the planned subtle change has been achieved. Photographs in similar lighting before and after are particularly useful for partial dissolution because the change can be hard to see in the mirror.
Risk Profile Compared to Complete Dissolution
Partial dissolution has a similar risk profile to complete dissolution, with some specific differences:
Lower probability of post-treatment over-correction. Because less filler is being removed, the risk of over-shooting the intended outcome is lower.
Lower probability of needing a second session. Most patients achieve the planned partial reduction in a single appointment.
Similar probability of bruising and swelling. The injection itself is similar; the post-injection response depends on individual factors more than on dose.
Similar probability of vascular events. The vascular risk relates to the injection itself, not the dose of enzyme. The same care is required.
A specific risk worth flagging: under-dissolution. If the dose is too small, the planned partial change may not be achieved, leaving the patient unhappy with a result that is barely different from the starting point. The clinical response is to schedule a follow-up appointment with a small additional dose if needed. The 2-week review is when this decision is made.
Patient Selection
Partial dissolution suits patients who:
Are satisfied with most of their existing work but want specific refinements.
Want to retain the volume foundation while adjusting localised problems.
Are comfortable with subtle change rather than dramatic transformation.
Will attend the 2-week review for clinical assessment.
Understand that a second session may be needed if the first does not achieve the planned change.
Partial dissolution does not suit patients who:
Want the existing work removed entirely. Complete dissolution is the appropriate choice.
Have allergic or inflammatory reaction to filler. Complete dissolution is appropriate.
Have migrated filler over a wide area. Complete dissolution is generally easier to manage.
Want immediate dramatic change. The subtle outcome of partial dissolution will not meet that expectation.
The consultation discussion identifies which approach fits the patient’s specific situation.
Combining Partial Dissolution with Fresh Treatment
In some cases, partial dissolution is combined with fresh filler treatment in the same area. The sequence:
Partial dissolution at appointment 1.
Settling period (typically 2 to 4 weeks).
Fresh filler at appointment 2, calibrated to the now-settled foundation.
This sequence is appropriate when the existing filler has both excess in some areas and insufficiency in others. The partial dissolution corrects the excess; the fresh treatment addresses the insufficiency. The two-stage approach produces a more refined result than either single-session option could achieve.
The decision to combine is made at the consultation. It typically takes longer overall (4 to 6 weeks from start to settled outcome) but produces a more nuanced result.
How Photography Supports Partial Dissolution Assessment
Photography is more important for partial dissolution than for complete dissolution because the change is subtler. Standard clinical photography includes:
Front-on, profile, three-quarter views from multiple angles.
Consistent lighting and patient positioning across visits.
Close-up of the specific area being treated.
The 2-week review compares before and after photographs to confirm the planned change has been achieved. Patients sometimes find that the change they cannot easily see in the mirror is clearly visible in side-by-side photographs. The photographs are stored in the clinical record.
Photographs are taken with the patient’s consent and used for clinical purposes only. They are not used in marketing because TGA Therapeutic Goods Advertising Code prohibits before-and-after imagery of identifiable patients in cosmetic injectable advertising.
What if Partial Dissolution Achieves Less Than Planned
If the 2-week review shows that the partial dissolution achieved less than the planned change, options include:
Additional small dose at a second session. The settling from the first session can be assessed; the second dose targets only the residual area.
Acceptance of the current state. Sometimes the change is enough to be clinically acceptable even if it is less than the original target.
Fresh filler as the next step. If the partial dissolution has refined the foundation enough that fresh treatment now makes sense, that is the next decision.
More complete dissolution. If the situation requires a different approach, the patient may opt to dissolve the area more completely.
The decision is made collaboratively at the 2-week review based on the visible result and the patient’s preference.
Pricing and Cost Structure
Partial dissolution is priced based on the time and product used at the appointment. The fee structure is consistent with complete dissolution at the per-appointment level; the difference is that partial dissolution typically requires less product (less hyaluronidase) than complete dissolution.
Where a second session is needed at the 2-week review, that is a separate appointment with its own fee. The pricing does not include ‘unlimited’ second sessions; each appointment is priced for what is delivered.
Pricing is discussed at consultation and is consistent with TGA Therapeutic Goods Advertising Code requirements: no time-limited offers, no discount-based promotion, no bundled pricing structures designed to encourage immediate decisions.
Aftercare for Partial Dissolution
Aftercare for partial dissolution follows the same principles as complete dissolution: avoid pressure on the treated area, vigorous exercise, alcohol, and hot environments for the first 24 to 48 hours. Mild cold compresses can help with swelling. Sleep with the head elevated for the first night.
The specific recommendations are the same as for complete dissolution because the post-injection response is similar in character even though the magnitude of change is smaller. Patients sometimes underestimate the need for aftercare because the dose is smaller; the recommendation is to follow the same aftercare structure regardless.
The 2-week review is the structured assessment point. Patients are encouraged to attend even if the result feels settled to them. The review provides clinical assessment, photographic documentation, and the basis for any subsequent treatment decision.
How This Operates at Core Aesthetics
Partial dissolution at Core Aesthetics is conducted by Corey Anderson, AHPRA registered nurse, NMW0001047575, with structured pre-treatment consultation, dose calibration based on the specific clinical situation, photography for documentation, and the 2-week review built into the standard plan.
The consultation discussion identifies whether complete or partial dissolution is the appropriate clinical approach. Where partial is selected, the specific dose, technique, and review schedule are documented in the clinical record.
Aftercare instructions are provided in writing at the appointment with verbal reinforcement. Direct contact information is provided for any post-treatment concerns. The 2-week review is scheduled at the dissolution appointment and is part of the standard treatment plan.
Is this for you?
Consider booking a consultation if
- Patients with existing filler that is mostly appropriate but needs specific refinement
- Patients who want to preserve their current volume while making targeted adjustments
- Patients comfortable with subtle change rather than dramatic transformation
- Patients curious about the clinical options between full dissolution and no intervention
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 seeking complete removal of existing filler, complete dissolution is the appropriate choice
- Patients with allergic reaction or active infection, the response is urgent rather than refined
- Patients who are pregnant or breastfeeding
Suitability is confirmed at consultation. This list is general guidance, not a substitute for clinical assessment.
Frequently asked questions
Why would I want partial dissolution instead of complete dissolution?
Partial dissolution is appropriate when the existing filler is mostly appropriate but needs specific refinement. Complete dissolution removes everything; partial dissolution refines while preserving the overall foundation. Examples include minor over-volumisation, localised migration, or specific areas of asymmetry where complete dissolution would over-correct.
How will I know if partial or complete dissolution is right for me?
The consultation discussion identifies which approach fits your specific situation based on what was previously placed, what you are unhappy with, and what outcome you want. The clinical recommendation is based on assessment, not on patient preference alone. Sometimes the recommendation is partial; sometimes complete. The reasoning is documented and explained.
Will I see the change after partial dissolution?
Yes, but the change is subtler than after complete dissolution. Most visible reduction occurs within 24 to 48 hours, with continued settling across days 2 to 7. Some patients find the change harder to see in the mirror; photographs in consistent lighting before and after make it clearer. The 2-week review confirms the planned change has been achieved.
Can partial dissolution be combined with fresh filler in the same area?
Yes, in a staged sequence: partial dissolution first, settling period of 2 to 4 weeks, fresh filler at a subsequent appointment. The two-stage approach produces a more refined result than a single session could achieve. The decision to combine is made at consultation-based on what the existing filler shows.
Is partial dissolution cheaper than complete dissolution?
Partial dissolution typically uses less product (less hyaluronidase) than complete dissolution, so the per-appointment fee may be lower. The decision is clinical, not cost-based. Pricing is discussed at consultation. There are no discount or time-limited pricing structures for either approach.
What happens if the partial dissolution achieves less than planned?
Options include a small additional dose at a second session, acceptance of the current state if it is clinically acceptable, fresh filler as the next step, or more complete dissolution if the situation calls for a different approach. The decision is made at the 2-week review based on the visible result and patient preference.
Are there situations where partial dissolution is not safe?
Partial dissolution has a similar risk profile to complete dissolution. Specific contraindications: allergic reaction to hyaluronidase or filler, vascular event in progress (where complete dissolution is the urgent response), active infection at the planned injection site, significant migration where complete dissolution is more manageable, or pregnancy/breastfeeding. The consultation screens for contraindications.