Gouri Skin Booster: What This Injection Is, Explained Simply

a. GOURI is a skin booster made by turning its key ingredient, PCL, into a thin liquid. It is a treatment we consult on when skin looks thinner and less firm than before, or when you are concerned about fine lines around the eyes or rough skin texture. b. Its use is different from fillers, which fill in hollowed-out areas. We judge the results by looking at the skin a few weeks after the injection, once the swelling has gone down, rather than on the day of the injection. c. Swelling and bruising may occur, and bruises can sometimes last a long time. Please be sure to tell us about any medications you take and any recent treatments during your consultation.

Hello, I am Sohyun Park, Chief Physician at Samsung BNS Clinic.

Gouri is a type of skin booster, also known as a collagen booster. You may have heard of the name, but you might still wonder what the injection is made of and how you should take care of yourself after getting it.

So today, we have put together an easy-to-understand guide on what Gouri is, what concerns it is used for, how the treatment is done, and what to keep an eye on afterward.

This is an illustrative image based on a marble sculpture. The actual injection sites and amounts are determined after examining your face in person.

1. Gouri Is an Injection Made by Turning PCL into a Thin Liquid

GOURI is a product made by the Korean company Dexlevo. Its key ingredient is PCL, which stands for polycaprolactone. PCL is a medical-grade material that slowly breaks down over time once it enters the body, and it has been used in other injectable products as well.

Product photo of Gouri (from the clinic's website) and product information.

Each Gouri syringe contains 1 ml of this PCL as a thin, whitish liquid. The treatment involves injecting this liquid into the skin in small amounts using a fine needle.

This is an illustrative image. The injection depth, amount, and spread pattern are determined by examining your face and vary from person to person.

Gouri is a skin booster made by turning the PCL ingredient into a thin liquid.

2. Why It Is Called a ‘Collagen Booster’

Collagen is a protein in the skin that helps keep it firm and supported. As we age, the amount of collagen decreases, which can make the skin thinner and lead to more fine lines.

According to the manufacturer, the PCL injected into the skin breaks down slowly, and this process stimulates the skin to produce new collagen. That is why Gouri is also introduced as a collagen booster or collagen injection.

For this reason, we judge Gouri's results by looking at the skin a few weeks after the swelling has subsided, rather than by how it looks on the day of injection. How noticeable the changes are and how long they last depend on age, skin condition, and lifestyle habits.

This is a treatment judged by how the skin looks a few weeks after the injection, not on the day itself.

3. When to Consult Us

Gouri is not an injection that fills in areas to change their shape. It is a skin booster that focuses on the condition of the skin itself. That is why we ask about these concerns first during consultations.

· Firmness — when your skin feels thinner and less firm than before

· Fine lines — when fine lines, such as those around the eyes, have increased

· Skin texture — when your skin texture looks rougher than before

A quick overview of the three concerns we consult on for Gouri.

On the other hand, if your main concern is filling sunken areas, such as the cheeks or forehead, we will compare options with volume-filling treatments. The manufacturer also presents Gouri not as a volumizing product, but as a product for improving the skin itself.

This is an injection for when your concern is skin condition rather than wanting to add volume.

4. How the Procedure Works

Step 01 / 03 · Consultation (CONSULT)

The chief physician examines your face in person to check the areas of concern and your skin condition. We will also ask about any medications you take and any treatments you have had before.

Step 02 / 03 · Preparation (PREPARE)

Your face is cleansed and disinfected, and if needed, a numbing cream is applied to reduce stinging.

Step 03 / 03 · Injection (INJECTION)

The product is injected into the skin in small amounts using a fine needle. The amount and injection sites are determined by examining your face. Once the procedure is finished, the area is disinfected, and we will go over the aftercare instructions with you.

You may also wonder how many sessions you need. The manufacturer recommends one session as the basic course, and depending on skin condition, one or two additional sessions at 4- to 6-week intervals.

A quick overview of the procedure steps and number of sessions. The session count is based on the manufacturer's guidelines.

5. What to Do After the Procedure

Timing 01 / 03 · Same Day (DAY 0)

Avoid wearing makeup for 12 hours after the procedure. Do not rub or press firmly on the injection sites.

Timing 02 / 03 · 1–2 Days (DAY 1–2)

Avoid exercise that causes heavy sweating, and avoid alcohol.

Timing 03 / 03 · 2 Weeks (2 WEEKS)

Avoid spending long periods in saunas, jjimjilbangs (Korean bathhouses), or under strong sunlight. While swelling or warmth remains, also avoid very hot or very cold places.

Swelling may appear during the first few days, and the manufacturer notes that swelling can sometimes return one to two weeks later. Once a bruise forms, it can last a long time. If you have a big event coming up, such as a family gathering or a photo shoot, please schedule your treatment with plenty of time to spare.

A quick guide to aftercare following the procedure.

Bruises can last a long time, so please let us know in advance if you have an important event coming up.

6. Side Effects to Know About in Advance

Since Gouri is an injectable treatment, you may have some reactions after the procedure. Knowing about them in advance can help you feel less worried and make sure you don't miss when to contact us.

· In the days after treatment — swelling, redness, bruising, pain, itching, and warmth may occur, and these can last about a week.

· Later on — small lumps (nodules) may be felt at the injection sites, the area may feel firm, or its color may change. You may also not see as much change as you expected.

· Allergic reaction — an allergic reaction to Gouri's ingredients may occur. This can include a rash that spreads across the body, severe itching, or shortness of breath.

· Serious side effects — if the injection enters a blood vessel, serious complications can occur, such as damage to the skin tissue or vision problems.

Please contact us right away if any of these changes occur: swelling or redness that lasts more than a week or keeps getting worse; skin at the injection site turning pale or mottled; pain that keeps intensifying; blurred vision or any change in your eyesight; shortness of breath or a rash that spreads across your body; lumps felt or a change in skin color; or any new symptom you have never experienced before. If you have shortness of breath, or if you have a vision problem and cannot reach the clinic, please go to the nearest emergency room.

A quick overview of post-treatment reactions and when to contact us right away.

7. When We Do Not Perform the Treatment or Postpone It

We will not perform the treatment, or will postpone it until you have recovered, if you are pregnant or breastfeeding; if you are a minor; if you are taking anti-inflammatory pain relievers such as aspirin, blood-thinning medications, or immunosuppressants; if you have an autoimmune disease or a condition in which bleeding does not stop easily; if you have had a severe allergic reaction in the past; if you are prone to keloid scarring; or if there is inflammation at the injection site or an infection in your body. Please do not stop any medication on your own; let us know first.

There are also a few things that are helpful to share during your consultation: skin treatments such as lasers or peels that you have recently had or plan to have, the type and timing of any fillers you have had before, and whether you tend to get cold sores (herpes) around the mouth. The timing between other treatments is determined based on the type of treatment and your skin condition.

Frequently Asked Questions

Q. Can I go to work the day after the treatment?

Injection marks, swelling, and bruising may be visible for a few days. You can wear makeup starting 12 hours after the treatment. Since bruises can last a long time, if you have an event or photo shoot where your face will be on display, please tell us the date during your consultation first. We will plan the treatment date together to fit your schedule.

Q. When will I start to see results?

Right after the injection, your skin may look different due to swelling, so we do not judge the results based on how you look that day. We monitor your skin for several weeks after the swelling subsides and review it together at your next visit. The timing and extent of visible changes vary from person to person.

Q. Can I have Botox or another skin booster on the same day?

The manufacturer advises against mixing Gouri with other products and recommends leaving about a month between it and a hyaluronic acid filler, either before or after. Whether treatments can be done on the same day depends on the type of treatment and your skin condition. If you tell us which treatments you have had or plan to have, and when, we will decide together during your consultation.

Q. Can I receive the treatment if I am taking aspirin?

We do not perform the Gouri treatment while you are taking anti-inflammatory pain relievers such as aspirin or blood-thinning medications. However, in some cases you should not stop your medication on your own. If you tell us the name of the medication and why you are taking it, we will check together whether you need to consult the department that prescribed it.

What We Look at Before the Treatment

At the consultation

What we ask about first

· Concerns — which comes first: firmness, fine lines, or skin texture

· Skin condition — skin thickness, and whether there are sunken areas as well

· Medications — anti-inflammatory pain relievers, blood-thinning medications, immunosuppressants

· Health status — autoimmune disease, bleeding disorders, allergies, pregnancy or breastfeeding

· Previous treatments — fillers, and recent or planned lasers and peels

· Schedule — whether you have any important events coming up, considering possible bruising and swelling

At Samsung BNS Clinic, the chief physician consults with you first, rather than the counseling staff, and decides together with you whether and how to proceed after examining your face in person.

Chief Physician Sohyun Park, Samsung BNS Clinic

If you are considering Gouri

You don't have to decide on a treatment right away.

Gouri is a skin booster aimed at improving skin firmness, fine lines, and skin texture. Whether to address your current concerns with Gouri or to look at other options together should be decided after examining your face in person.

After we review together the areas of concern, your skin condition, the medications you take, and your previous treatments, I will explain the options you can consider now, including Gouri, and what to watch for after treatment.

Consultation and Booking Information

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