
Hello.
I am Dr. Dong-young Kim, Director of Cleor Clinic Hongdae Branch.
As you supplement fillers once or twice more,
have you ever felt that the area has become increasingly thick compared to the beginning,
or felt that it has lost its original shape?
"What started as small touch-ups has somehow become excessive,
to the point where it's hard to remember what the original shape was."
I often hear stories like this.
Hyaluronic acid fillers have the property of attracting moisture,
so they may change slightly and naturally as they settle,
and if additional procedures are repeated while some filler remains,
the volume can gradually accumulate.
In such cases, cleaning up the existing filler and starting over
actually leads to a cleaner result,
and the filler-dissolving injection performs that cleanup role.
At the Hongdae branch, we perform filler-dissolving injections using Hirax, a high-purity liquid hyaluronidase.
We are currently providing filler-dissolving injection treatments.
Today, I will explain the principles of how filler-dissolving injections work,
and how Hirax functions.

What is the Hongdae Filler-Dissolving Injection?
👉 The Hongdae filler-dissolving injection involves injecting an enzyme that breaks down hyaluronic acid,
breaking down the existing filler into small units to be absorbed.
The core ingredient, hyaluronidase,
is an enzyme that naturally exists in our bodies.
Hyaluronic acid fillers have a structure where molecules are tightly intertwined,
and when this enzyme breaks those links into smaller units,
they are naturally absorbed by the body.
It is easy to understand if you imagine using an eraser to clean up a poorly drawn pencil sketch
before drawing it cleanly again.
Hirax, used at the Hongdae branch,
is a product containing this enzyme in a high-purity liquid form,
so the activity of the ingredients remains uniform without the need for a powder dilution process.
Effects and Advantages of Hongdae Filler-Dissolving Injections
👉 The core advantages of Hongdae filler-dissolving injections
can be summarized into three points: selective decomposition, partial adjustment, and rapid response.
First, it acts selectively only on hyaluronic acid fillers.
It focuses on decomposing only the hyaluronic acid components
while minimizing the impact on surrounding normal tissues.
Second, partial adjustment is possible as much as desired.
Instead of dissolving everything unconditionally,
the area and dosage can be finely adjusted
to clean up only to the necessary extent.
Finally, the response is relatively fast.
With high-purity liquid Hirax, after the procedure,
changes are often felt within 24 to 48 hours,
and it is generally known to settle gradually over 24 to 72 hours.

Who should consider Hongdae Filler-Dissolving Injections?
Those who have thick filler accumulation from repeated procedures
Those whose filler has spread over time, causing blurred boundaries
Those whose aegyo-sal or under-eye filler appears bluish
Those who need to clear residual filler before rhinoplasty
Those who want to clean up existing filler before a touch-up procedure
Side Effects and Precautions for Hongdae Filler-Dissolving Injections
👉 Hongdae filler-dissolving injections only work on hyaluronic acid fillers,
and are ineffective on fillers made of other ingredients.
Calcium-based fillers like Radiesse or semi-permanent fillers
cannot be decomposed by this injection and require other methods.
Therefore, it is important to confirm which filler was used and when before the procedure.
Temporary swelling or bruising may occur after the procedure,
but most cases are reported to subside within a few days.
Since there is a possibility of an allergic reaction to the enzyme component,
we recommend a reaction test before the procedure.
Please inform us in advance as the procedure may be restricted in the following cases:
History of allergy to enzyme components
If pregnant or breastfeeding
Acute inflammation, wounds, or herpes in the treatment area
Difficulty confirming the type of filler previously received
Suspected infection in the treatment area

⚠️ Pre-procedure Precautions for Hongdae Filler-Dissolving Injections
1–2 Weeks Before the Procedure
It is helpful to prepare information regarding the type and timing
of your previous filler injections in advance.
The procedure method may vary depending on the type of filler.
2–3 Days Before the Procedure
Excessive alcohol consumption can increase the possibility of bruising and swelling,
so we recommend reducing it as much as possible.
Day of the Procedure
If you have an allergy history or are taking any medications,
please inform us during the pre-consultation.
If an enzyme reaction test is required, it will be performed before the procedure.
⚠️ Post-procedure Precautions for Hongdae Filler-Dissolving Injections
Day of the Procedure
Do not rub or apply strong pressure to the treated area.
It is best to avoid washing with hot water or visiting saunas.
3–7 Days After the Procedure
We recommend refraining from strenuous exercise, alcohol, and jjimjilbangs (Korean saunas).
Since the effects appear over 24 to 72 hours,
please observe for a few days rather than judging the results the very next day.
2 Weeks After the Procedure
If you are planning a touch-up procedure, it is safe to wait at least 2 weeks
to allow the tissue to stabilize.
❓ Frequently Asked Questions (FAQ)
Q. Are Hongdae filler-dissolving injections effective for all types of fillers?
They only work on hyaluronic acid fillers.
Calcium-based fillers like Radiesse or semi-permanent fillers do not decompose,
so the process of confirming the filler type before the procedure is important.
Q. When will I see the effects of the Hongdae filler-dissolving injection?
In some cases, changes can be felt as early as 24 to 48 hours,
and it is generally reported to settle gradually over 24 to 72 hours.
It is better to observe for a few days rather than judging immediately on the same day.
Q. Can I dissolve only specific areas with the Hongdae filler-dissolving injection?
Since the approach involves adjusting the area and dosage to decompose only as much as needed,
it is possible to clean up partially without dissolving everything.
However, results may vary depending on the amount and distribution of the filler.
Q. Will the area become hollow after receiving a Hongdae filler-dissolving injection?
It is closer to returning to the state before the filler was injected,
so it does not necessarily become hollow.
You can redefine your desired lines through a subsequent touch-up procedure.
Q. Are Hongdae filler-dissolving injections used in emergencies?
They are sometimes used to quickly reduce risks when there are concerns
about vascular compression or adverse skin reactions after a filler procedure.
In such cases, prompt treatment is crucial, regardless of aesthetic purposes.
Fillers can change shape over time,
or become different from the beginning as additional procedures accumulate.
In those moments, the process of cleaning up existing filler and starting over
actually leads to more natural results,
and the Hongdae filler-dissolving injection is the procedure responsible for that cleanup.
The direction of treatment suited to the type and amount of filler
will be determined during your consultation.
If you are concerned about fillers that have changed shape or accumulated volume,
please feel free to visit Cleor Clinic Hongdae Branch.
Even before deciding on a procedure, we will provide detailed guidance on the state of your existing filler
and the most suitable cleanup direction through a pre-consultation.
※ This content is for general informational purposes, and results may vary depending on the individual.
Please consult with a specialist for an accurate diagnosis and to determine if the procedure is right for you.
