“Some people say Rejuran worked well for them, while others are recommended Juvelook. What is the difference?”

“My skin feels thin and less firm. Which skin booster would suit me?”

“Would it be better to receive all three together?”

During skin booster consultations in Gongdeok, many patients already know the product names.

What they are less certain about is why a particular product may be appropriate for their own skin.

Rejuran, Juvelook, and RE2O can all be used to improve the dermal environment, but they approach the skin in different ways.

So rather than asking simply:

“Which product is better?”

it is more useful to first determine what your skin needs most right now.

The choice may differ depending on whether the priority is supporting skin recovery, stimulating collagen production, or supplementing the extracellular matrix environment of the dermis.

1. The Three Skin Boosters Work in Different Ways

Rejuran is a skin booster that uses PN (polynucleotide).

It is generally used to support the skin’s recovery process and overall skin condition.

It may be considered when the skin feels thinner or drier than before, or when fine lines and changes in texture are also becoming more noticeable.

Juvelook uses PDLLA to stimulate collagen production within the skin.

Rather than immediately filling an area, it relies on a gradual collagen-generating process over time.

For this reason, it may be considered when concerns include reduced skin density, enlarged-looking pores, fine lines, or loss of firmness.

RE2O is based on human acellular dermal matrix (hADM) and utilizes extracellular matrix (ECM) components found in the dermis, including collagen and elastin.

The extracellular matrix refers to the structural environment surrounding cells and includes components that help support the architecture of the skin.

RE2O differs from Rejuran and Juvelook in that it approaches treatment by supplementing the extracellular matrix environment of the dermis.

So while all three may seem similar in the sense that they are injectable treatments intended to improve skin quality, the way they approach the skin is different.

2. Thin Skin Does Not Automatically Mean the Same Skin Booster for Everyone

We often hear the question:

“My skin is thin. Does that mean I should get Rejuran?”

But the description “thin skin” can include several different conditions.

Some patients feel their skin looks thin because it is dry and sensitive.

Others notice more fine lines and a loss of resilience.

In some cases, reduced dermal firmness progresses at the same time, making the skin appear generally looser.

The important point is not to choose a product based on the phrase “thin skin” alone.

If supporting skin recovery and improving overall skin condition is the priority, Rejuran may be considered.

If improving skin density and stimulating collagen production is more important, Juvelook may be more appropriate.

If the concern goes beyond surface texture and the dermal structural environment itself appears weakened, an ECM-based approach such as RE2O may also be considered.

Even when patients use the same phrase—“my skin feels thin”—the choice can differ depending on what is actually lacking in the skin.

3. For Pores and Fine Lines, Look at Why They Appeared Before Choosing the Product

Pores and fine lines are also among the most common concerns discussed during skin booster consultations.

But choosing one product simply because the pores look larger or fine lines have increased may not be the most appropriate approach.

Fine lines that become more noticeable because the skin is dry and rough are different from pores and reduced firmness that appear alongside lower dermal density.

If collagen stimulation is needed, Juvelook may be considered.

If skin recovery and improvement in overall skin condition are more important, Rejuran may have a role.

If supporting the structural environment of the dermis is also a priority, RE2O may be included among the options.

This is why, in actual consultation, we do not automatically group pores, fine lines, and reduced firmness into one problem.

We first identify which concern is currently the most significant.

Before choosing the product, it is important to determine which treatment direction the skin needs most.

Timeless Answers.

If pores are my biggest concern, is Juvelook automatically the best option?

It depends on why the pores appear enlarged.

If reduced dermal density and firmness are contributing factors, a collagen-stimulating treatment such as Juvelook may be considered.

On the other hand, if the pores appear more noticeable because the skin has become dry and rough, RE2O may be a more appropriate option depending on the overall skin condition.

If I am in my 40s, should RE2O be prioritized?

Age alone does not determine which skin booster should be used.

Even among patients in their 40s, skin thickness, firmness, fine lines, and previous treatment history can differ significantly.

For this reason, it is more appropriate to choose based on the current condition of the dermis and the concern that feels most significant, rather than age alone.

Can I keep repeating the same skin booster?

If you were satisfied with the previous treatment and the same concern remains, continuing with the same treatment may be appropriate.

However, skin condition and treatment priorities can change over time, so it is helpful to reassess the skin when considering maintenance treatment.

The fact that a treatment worked well last time does not necessarily mean it is still the treatment you need most now.

Skin Boosters in Gongdeok: With Rejuran, Juvelook, and RE2O, Start With What Your Skin Needs—Not the Product Name

It is difficult to say that one of Rejuran, Juvelook, or RE2O is always the better skin booster.

That is because they work in different directions:

Rejuran uses PN to support skin recovery.

Juvelook uses PDLLA to stimulate collagen production.

RE2O uses an hADM-based approach to supplement the extracellular matrix environment of the dermis.

At Timeless Dermatology Mapo, our board-certified dermatologists personally assess the current skin condition together with previous treatment history and first determine what the skin is lacking most.

Even when two patients describe the same concerns, such as fine lines or reduced firmness, one may need more support for skin recovery while another may benefit more from collagen stimulation or reinforcement of the dermal environment.

The most important part of choosing a skin booster is not selecting the most well-known product.

It is determining what type of support your skin actually needs right now.