Everything About the Next-Generation Skin Improvement Treatment Receiving the Most Attention at Korean Aesthetic Dermatology Clinics

🌟Can your skin quality change with just one treatment per year?

Why リトゥオ (Re2O) is attracting attention

“I have to undergo another treatment next month…”

“The longer I continue using skin boosters, the more they cost…”

Many of you may be experiencing these concerns.

In 2025, the skin booster attracting attention at Korean aesthetic dermatology clinics is

“リトゥオ (Re2O).”

With conventional skin boosters, regular treatments every 2–3 months were common.

リトゥオ, on the other hand, is said to offer lasting effects for up to approximately one year with just one treatment per year,

making it a next-generation skin improvement treatment that is attracting interest.

People who have actually undergone the treatment at Korean aesthetic dermatology clinics say,

“It’s great that treatments are needed less frequently.”

“It’s easier to notice long-term changes in the skin.”

These are some of the comments that have been shared.

In this article, we’ll explain in an easy-to-understand way why Re2O is attracting attention,

as well as its features and how it works.

💡 What is Re2O? How Is It Different from Other Skin Boosters?

Re2O is a skin booster

developed by the Korean biotechnology company “ELLE RAVIE.”

Its greatest feature

is that it uses an ingredient called HADM (Human Acellular Dermal Matrix).

“I feel a little uneasy when I hear that it’s human-derived…”

Some people may feel this way.

This ingredient was developed to target the foundation of the skin (the dermal structure)

while taking safety into consideration by using only the dermal structure after removing its cellular components.

It has received approval from the FDA (U.S. Food and Drug Administration), Korea’s MFDS, and the AATB (American Association of Tissue Banks),

and its safety has been proven according to global standards🔐

The biggest difference from conventional skin boosters

is that, rather than “making the skin produce it,”

the approach is to “directly provide a finished ingredient.”

While Rejuran and Juvelook are treatments that promote skin regeneration,

Ritwo (Re2O) is designed to replenish the very components that form the skin’s framework.

As a result,

the effects appear quickly,

and it is also characterized by being easy to maintain for a long period of time💕

🌈 3 Innovative Features of Ritwo (Re2O)｜Why It Has Become Such a Hot Topic

① The Industry’s First! High-Purity HADM Derived from Human Dermis

The greatest feature of Ritwo (Re2O) is

its use of HADM (Human Acellular Dermal Matrix),

which is purified from human-donated dermal tissue using proprietary patented technology.

In fact, this is an industry-first approach.

While conventional skin boosters have primarily used animal-derived or synthetic ingredients,

Ritwo (Re2O) uses human-derived ingredients, allowing it to blend extremely well with the skin,

with the risk of rejection reactions also considered to be extremely low.

Furthermore, all cellular components are completely removed

from the donated tissue, leaving only pure ECM (extracellular matrix) components.

Because only tissue that has passed strict inspections is used,

it is designed with sufficient consideration given to the risk of infectious diseases.

② Injecting Fully Formulated Ingredients As-Is｜That’s Why the Effects Appear Quickly

Here is the main ingredient composition of Ritwo (Re2O).

・Collagen: approximately 89%

・Elastin: approximately 3%

・Hyaluronic acid: approximately 0.4%

・Other ECM components

All of these are formulated in a “fully completed state.”

In other words,

structural support can be expected from the moment it is injected into the skin.

While Rejuran and PDRN

are types that “promote skin regeneration,”

リトゥオ（Re2O）

can be likened to directly replenishing the components that form the foundation of the skin.

Therefore,

the effects tend to appear relatively quickly,

and many people are said to feel a plumper sensation immediately after the treatment💫

③ Lasting power of up to approximately 1 year｜Balancing cost-effectiveness and time efficiency

The point attracting the most attention is

its expected long-lasting effects.

Conventional skin boosters

generally require treatment every 2–3 months,

but for リトゥオ（Re2O）, the guideline is once a year (in some cases, twice a year).

Annual Schedule Comparison

・Conventional skin boosters: 4–6 times a year

・リトゥオ（Re2O）: 1–2 times a year

Because both the number of clinic visits and costs can be reduced,

it is also chosen by people who find “frequent treatments difficult”✨

The effects also tend to increase gradually,

and it is sometimes said that the highest level of satisfaction is achieved 3–6 months later.

Even in the long term,

as a cost-effective skin booster,

this is why it is attracting attention.

📅 Rituo Treatment Timeline｜When and What Changes Can You Expect?

You may be wondering what changes to expect after actually undergoing the treatment.

Here is a chronological overview of the progress generally reported.

Immediately After Treatment〜The Same Day

✨ Swelling and redness are relatively mild

Since numbing cream is used, many people reportedly feel minimal pain.

Needle marks may appear at the injection sites, but in many cases they become less noticeable by the following day.

Some people also feel their skin becoming firmer immediately after the treatment.

2 Weeks Later

✨ When the skin texture begins to improve

More people begin to notice that their skin feels smoother and that their pores are less noticeable.

Some also report noticing a change in how well their foundation adheres.

1 Month Later

✨ When changes in skin firmness are easier to notice

Many people feel a change in the firmness and elasticity of their cheeks,

and some feel that their overall complexion looks brighter.

3–6 months later

✨ A period when the skin condition tends to stabilize

The condition of the skin is relatively stable,

and satisfaction tends to increase in several areas, such as radiance, elasticity, and the appearance of pores.

6 months to 1 year later

✨ A period when lasting effects can be expected

Although individual results vary, リトゥオ is considered a treatment that can produce long-term changes in the skin.

Around the one-year mark, some people consider undergoing another treatment depending on their skin condition.

🔐 Is it safe? About the reliability of リトゥオ

When they hear that it contains human-derived ingredients, many people may have concerns about its safety.

リトゥオ is manufactured under a review and management system based on international standards.

Major approvals and certifications obtained

・FDA (U.S. Food and Drug Administration) approval 

・Korean MFDS (Ministry of Food and Drug Safety) approval 

・AATB (American Association of Tissue Banks) certification

These represent one of the strictest standards in the world for proving the safety of medical devices and pharmaceuticals.

In other words, リツオ is recognized as a “safe treatment method based on solid evidence”✨

Thorough quality control

Strict inspections are conducted throughout every stage, from donor tissue selection to product manufacturing.

Products undergo multiple rounds of screening for viruses, bacteria, and infectious diseases, and only 100% safe products are shipped.

Also, since it is an ACELLULAR (cell-free) preparation with all cells completely removed, the risk of rejection or immune reactions is extremely low🛡️

💭 Ritsuo is recommended for these people! Does this sound like you?

☑️ You like Rejuran, but the treatment frequency feels burdensome

Perfect for those who find visiting the clinic every month to two months difficult both time-wise and financially…!

☑️ You want long-lasting skin improvement

Ideal for those who want to transform their skin from the inside out, rather than achieve temporary improvement.

Ritsuo strengthens the very “foundation” of your skin.

☑️ You are seriously concerned about enlarged pores

It has an especially strong reputation for tightening pores!

In Korea, it is also popular as a “pore-focused skin booster.”

☑️ You want to transform your skin from the inside out

For those who want to take an approach at the structural level of the skin, rather than relying on surface-level care.

Because it directly replenishes collagen and elastin, fundamental improvement can be expected.

☑️ You want minimal downtime

There is almost no swelling or redness, so you can go about your normal routine from the next day.

It is so convenient that you can have the treatment on the weekend and go to work as usual from Monday💼

☑️ You want beautiful skin while prioritizing cost-effectiveness

Since one treatment per year is enough, it is highly economical in the long run!

Getting the treatment in Korea can reduce the cost even further✨

🆚 Ritso vs. Other Skin Boosters｜What’s the Difference?

“So, ultimately, how is it different from Rejuran and Juvelook?”

We’re here to answer that question〜!

Ritso vs. Rejuran

Rejuran（PDRN）

・A regenerative ingredient derived from salmon DNA 

・Promotes the skin’s natural regeneration

 ・Treatment recommended every 2–3 months 

・Takes several weeks to see results

Ritso（HADM）

・A finished ingredient derived from the human dermis

 ・Directly replenishes the ingredients

 ・Once-a-year treatment is sufficient 

・Provides immediate results

Both are excellent treatments,

but Ritso is recommended for those who “want to reduce treatment frequency” or “want immediate results”!

Ritso vs. Juvelook

Juvelook（PDLLA） 

・Promotes collagen production with a synthetic polymer 

・Also adds a sense of volume 

・Treatment is required every few months 

・Effects gradually appear

リツオ（HADM） 

・Natural collagen

・Directly injects elastin

 ・Specialized in improving skin quality

 ・Once a year is sufficient 

・A plump feeling from the same day

ジュベルック is for those who “also want volume,”

while リツオ is for those who “simply want to improve their skin quality”〜💡

🇰🇷 Benefits of getting リツオ in Korea｜Why is Korea recommended?

At present, there are still few clinics offering リツオ in Japan.

But in Korea, the treatment is available at many dermatology clinics!

Benefits of getting リツオ in Korea

① An overwhelmingly large number of cases

As a beauty powerhouse, Korea has far more リツオ cases than Japan.

You can feel reassured knowing that the procedure is performed by an experienced doctor✨

② Thorough consultations

Many dermatology clinics in Korea also have counselors specializing in Japanese patients, so there is very little concern about language barriers.

They will suggest the best plan based on your skin type and concerns.

③ Experience the latest treatments at an early stage

Korea is at the forefront of aesthetic medicine.

It is not uncommon for new treatments and devices to be introduced one to two years earlier than in Japan.

④ Enjoy it as part of your trip

Enjoy not only aesthetic treatments, but also Korean cuisine and shopping!

You can spend a fulfilling time combining it with beauty tourism🛍️💕

❓ Frequently Asked Questions｜Everything You Want to Know About リツオ!

Q1. Does it hurt?

A. Since numbing cream is used, the pain is considered minimal.

You may feel a slight prickling sensation, and many people say, “It was easier than I imagined.”

Q2. How long does the procedure take?

A. It takes approximately 30–40 minutes, including the numbing time.

The actual injection takes about 10–15 minutes.

Q3. Is there any downtime?

A. There is generally little to no significant downtime.

Needle marks or mild redness may appear, but in many cases they become unnoticeable by the next day.

Makeup is generally permitted from the following day.

Q4. Can it be combined with other treatments?

A. Yes, it is considered possible.

There are cases where it is combined with treatments such as Botox or laser treatments,

but it is recommended that you consult a doctor regarding the order and interval between treatments.

Q5. When can I expect to feel the effects?

A. While results vary from person to person, some people feel an increased sense of firmness relatively soon after the procedure.

In many cases, changes in skin texture become easier to notice within approximately 2 weeks to 1 month.

Q6. How many times a year do I need to receive the treatment?

A. In general, many people use once a year as a guideline.

Depending on their skin condition and goals, some people consider additional treatment after 6 to 8 months.

Q7. Are there any side effects?

A. Serious side effects are reported to be extremely rare.

Temporary redness, swelling, or bruising may occur, but in most cases, these symptoms subside within a few days.

Q8. Which areas can be treated?

A. The entire face is the primary treatment area, but the neck and décolletage may also be treated.

It is also possible to focus treatment on specific areas of concern.

✨ Summary｜Long-Term Skin Texture Care with Re2O

“Skin boosters require regular visits.”

Re2O is attracting attention as an alternative to this conventional perception.

It features a treatment schedule based on once a year as a guideline,

and uses an approach involving HADM derived from the human dermis

with the goal of caring for the foundation of the skin.

This treatment is often considered by people who:

・Want to minimize treatment frequency as much as possible

・Want to improve their overall skin texture, including pores and dullness

・Prefer a treatment with minimal downtime

・I want to think about skincare from a long-term perspective

In 2025, it is considered one of the treatments attracting growing interest even at Korean dermatology clinics.

During your trip to Korea,

considering it while receiving a consultation may be one option🇰🇷✨

The moment your skin truly changes is waiting for you🌸