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Jfeel Dermatology Hongdae Branch · ⠀Jfeel Clinic · July 13, 2026
One-line summary｜Gouri is a skin booster and medical device that uses liquid PCL. Rather than immediately filling the face like a filler, it is used to gradually manage skin elasti...
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This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.
Clinic: Jfeel Dermatology Hongdae Branch
Original post date: July 13, 2026
Translated at: August 17, 2026 at 5:15 PM
Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.
One-line summary｜Gouri is a skin booster and medical device that uses liquid PCL. Rather than immediately filling the face like a filler, it is used to gradually manage skin elasticity and texture.
Hello.
This is Jfeel Clinic, where we help you create your most beautiful look.
Recently, more people have been looking for Gouri injections and Gouri skin boosters.
During consultations, we often hear similar questions:
“Is Gouri a filler?”
“Won’t it make my face look puffy?”
“I heard that because it is in liquid form, nodules do not form. Is that really true?”
“When do the effects begin to appear?”
In this post, we will clearly explain what Gouri is, how it differs from fillers, and its possible side effects and precautions, using only objective information.
What Is a Gouri Injection?
Let us start with the conclusion.
Gouri is not a filler.
Gouri is a collagen booster used to manage skin elasticity and texture.
The ingredient used is PCL (Polycaprolactone),
which is a biodegradable material that has been used in the medical field.
According to the manufacturer, Gouri is a liquid PCL medical device approved by the Korean Ministry of Food and Drug Safety and certified with the European CE mark.
Rather than immediately filling sunken areas like a filler, it is intended to gradually manage the skin by creating an environment that supports collagen production within the skin.
What Is the Difference Between Gouri and Fillers?
Many people think of Gouri as the same type of treatment as a filler, but their purposes are different.
Fillers are mainly used to add volume to sunken areas or refine facial contours.
Gouri, on the other hand, is a collagen booster focused on managing skin elasticity and texture.
In simple terms:
| Category | Filler | Gouri |
|---|---|---|
| Main purpose | Adding volume to sunken areas | Managing skin elasticity and texture |
| Timing of changes | Relatively quick | Skin changes may appear gradually |
| Application method | Focused on specific areas | Designed across broader areas according to skin condition |
| Direction of results | Refining shape and contours | Managing skin elasticity and texture |
The choice of treatment may vary depending on the condition of your face and the changes you want.
Why Is Gouri a Liquid PCL Product?
Some existing collagen stimulators are available in microparticle or powder form.
A distinctive feature of Gouri is that it is formulated as liquid PCL.
The manufacturer explains that the liquid formulation was designed with its tendency to distribute relatively broadly within tissue in mind.
However, being in liquid form does not mean that side effects are impossible.
All injection treatments can produce different results depending on
Injection location
Injection depth
Injection amount
Individual skin condition
and other factors.
Does Gouri Prevent Nodules?
It cannot be stated definitively that “nodules never form because it is in liquid form.”
Nodules may be influenced by various factors, not only the formulation of the product.
When an excessive amount is injected into one area
When it is injected at a depth that does not suit the skin condition
When the ingredient becomes concentrated in the treatment area
Individual inflammatory responses or skin characteristics
Repeated pressure or irritation after the procedure
Infection or an inflammatory response
Therefore, just as important as the type of product are the healthcare professional’s decisions regarding injection depth, dosage, and placement.
Who May Be a Suitable Candidate for Gouri?
If you have any of the following concerns, you can consult a healthcare professional to determine whether it is suitable for you.
Your skin seems less elastic than before
Your face looks generally dull, dry, or lacking vitality
You want to manage fine lines and skin texture together
You want natural-looking skin changes rather than excessive volume changes
Fillers or thread lifting feel burdensome
You are concerned about the possibility of nodules from particle-based collagen injections
You want to manage the overall condition of your facial skin rather than focus on a specific area
However, if the skin is significantly sagging or a specific area is deeply sunken, combining other treatments—such as fillers, lifting lasers, or thread lifting—may be more suitable than Gouri alone.
When Do the Effects of Gouri Begin to Appear?
Gouri is not intended to create changes immediately after the procedure like a filler.
Because changes in collagen within the skin take time, changes in the skin may also appear gradually.
The timing and extent of changes vary from person to person depending on factors such as:
Age
Skin condition
Skin thickness
Lifestyle habits
Treatment plan
If you have an important event coming up, it is advisable to plan the treatment timing after a thorough consultation.
How Many Gouri Treatments Are Needed?
The number of treatments is not the same for everyone.
The following factors are considered together.
Degree of decreased skin elasticity
Skin condition
Treatment area
Age
Desired treatment goals
Previous treatment history
Rather than deciding on the number of treatments from the beginning, the plan may be adjusted after checking the skin’s response following treatment.
Why Combine Gouri with Cryocell?
After Gouri treatment, temporary redness, warmth, swelling, and other symptoms may occur due to injection-related irritation.
Cryocell may be used to cool and soothe the skin and deliver moisturizing ingredients to the skin’s surface.
At Jfeel Clinic, Cryocell soothing care may be provided after Gouri treatment depending on the condition of your skin.
However, rather than assuming that Cryocell necessarily increases Gouri’s absorption or directly increases collagen production, it is more appropriate to understand it as post-treatment soothing and moisturizing care.
.What Side Effects May Occur After Gouri Treatment?
Because Gouri is also an injection treatment, the following reactions may occur:
Redness
Swelling
Bruising
Pain
Tenderness
Itching
Temporary unevenness or bumps
Inflammation
Infection
Nodules
Allergic reactions
The severity of reactions and the recovery period vary from person to person.
If swelling or pain worsens, or if your skin changes color in a way that is unusual for you, it is advisable to contact the medical institution where you received the treatment.
Precautions After Gouri Treatment
After treatment, you should follow these precautions:
Do not excessively touch or press the treatment area
Avoid alcohol and strenuous exercise on the day of treatment
Avoid saunas, jjimjilbangs, and hot baths for several days
Do not massage the treatment area forcefully
Use sunscreen when going outdoors
Follow the precautions provided by your healthcare professional
Post-treatment care may vary depending on the treatment area and skin condition, so the healthcare professional’s instructions should take priority.
What Is Most Important in Gouri Treatment?
Even when the same product is used, results may vary depending on who receives it, where it is injected, how deeply it is injected, and how much is injected.
In particular, instead of treating the entire face uniformly, the following factors should be considered together:
Skin thickness
Facial bone structure
Distribution of fat
Degree of hollowness and sagging
Previous treatment history
Priorities for improvement
If you are considering Gouri treatment, it is important to have a thorough consultation to determine whether a treatment plan suited to your skin condition is possible, rather than simply comparing product names or prices.
Gouri is a collagen booster and medical device that uses liquid PCL,
and is used to gradually manage skin elasticity and texture.
Its purpose differs from treatments such as fillers, which immediately add volume to the face,
and a treatment plan suited to each person’s skin condition is important.
Also, being in liquid form does not completely eliminate the possibility of nodules or other side effects.
It is advisable to confirm whether the treatment is suitable for you through a thorough consultation before deciding to proceed.
※ This post is intended to provide general medical information. Results and adverse reactions may vary depending on an individual’s skin condition and the treatment method.
Adverse reactions such as redness, swelling, bruising, pain, inflammation, infection, and nodules may occur after treatment. Please consult thoroughly with a healthcare professional for more information.
Q&A Summary
Q. Is a Gouri injection a filler?
Unlike fillers, which immediately add volume to a specific area, Gouri is a collagen stimulator that uses PCL to support collagen production in the skin.
Q. Does Gouri prevent nodules from forming?
The liquid formulation differs in form from particle-based products, but the possibility of nodules cannot be completely ruled out.
It may vary depending on the injection depth and amount, treatment area, and individual skin response.
Q. Do the effects of Gouri appear immediately?
It is not a treatment intended to create an immediate change in volume like a filler.
Changes may appear gradually as collagen production progresses.
Q. Can I go about my daily activities after Gouri treatment?
Most daily activities are possible, but temporary redness, swelling, bruising, and pain may occur.
What matters is analyzing the causes specific to your face and creating an appropriate treatment plan.
Jfeel Clinic provides consultations to establish treatment plans suited to each individual’s facial shape and areas of hollowness.
※ All treatments may have different effects and recovery processes depending on the individual’s skin condition and the type of treatment.
If you have any questions before treatment or need a consultation, please feel free to contact Jfeel Clinic at any time!
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