When your skin texture no longer feels as smooth as before, your pores seem more noticeable, and even makeup does not sit evenly on the surface, many people visit a skin clinic with these concerns.

 

But during consultation, many people are unsure and ask questions like,

“Do I need filler?”
“Should I get a lifting treatment?”
“What is the difference between a skin booster and Juvelook?”

Today, I would like to explain Juvelook, a PDLLA-based collagen biostimulator that has been mentioned often recently, in a slightly easier way, including findings from a medical study :)

 

Juvelook is not simply a filler that immediately fills in hollow areas.

Rather, it is closer to a treatment that helps induce collagen response within the skin, gradually improving skin texture, fine lines, pores, and shallow depressions.

 

Of course, right after the injection, you may feel some hydration or a slight sense of volume.

However, the key point is not to make the skin look instantly “plumped up,” but to gradually refine the foundation of the skin over time.

 

So when understanding the effects of Juvelook, it is more natural to think of it not as a filler that shows immediate change in proportion to the amount injected, but as a treatment that helps create an environment where the skin can gradually rebuild itself.

 

So what kind of changes were observed in the actual study?

The study referenced here is a 2024 paper by Seo et al., published in the Journal of Cosmetic Dermatology.

 

This study evaluated how injectable treatment using PDLLA combined with non-cross-linked hyaluronic acid affected signs of skin aging.

 

A total of 16 Asian participants were included in the study.

Most were women, and the average age was 50.6 years.

Treatments were performed two to three times at four-week intervals.

 

The study evaluated several factors, including fine wrinkles, skin texture, irregular pigmentation, telangiectasia, and facial redness.

 

The results were quite interesting.

 

The average fine wrinkle score decreased from 6.25 before treatment to 3.88.

Skin texture decreased from 6.75 to 4.00.
Irregular pigmentation decreased from 7.38 to 4.38.

A lower score means that, in the evaluation, the signs of skin aging were interpreted as having improved.

 

The paper reported that these changes were statistically significant.

 

Another important point is the histologic evaluation.

 

In the study, biopsy samples were taken from the area behind the ear in some participants.

After treatment, an increase in collagen fibers and elastic fibers within the dermis was observed.

In other words, the study did not simply show that the skin looked better in photos.

It also confirmed structural changes within the skin, which makes the findings more meaningful.

 

Then how should we understand the effects of Juvelook?

 

Juvelook is somewhat different from a filler that lifts deep nasolabial folds at once or creates a large amount of volume immediately.

 

Rather, it is better approached as a treatment for refining the overall skin base in people whose skin looks thin,
whose pores appear enlarged, who have fine wrinkles spread across the skin, or whose skin surface looks rough and dry.

 

To use an analogy, if filler is closer to filling a collapsed wall with cement at once, Juvelook is closer to gradually reinforcing the inner structure of the wall so that the surface appears less rough over time.

That is why, rather than expecting a dramatic change from just one session, Juvelook is usually performed repeatedly at certain intervals, with the goal of gradually improving skin texture.

 

Who may be a good candidate for Juvelook?

 

Juvelook may be easier to explain for people who have fine wrinkles, enlarged pores, shallow acne scars, and reduced skin texture, rather than those with very thick and firm skin.

 

In particular, people who say things like,

“My skin feels thinner than before.”
“My pores look more stretched out.”
“When I apply makeup, the uneven texture becomes more visible.”
“I do not want to look unnaturally filled like with filler.”

may find the collagen biostimulator approach more suitable.

On the other hand, if deep wrinkles or significant volume loss are the main concerns, Juvelook alone may not be enough.

 

In such cases, filler, lifting treatments, lasers, radiofrequency treatments, or skin boosters may need to be combined according to the skin condition and facial structure.

 

Also, since Juvelook is an injectable treatment, more does not always mean better.

 

Because it contains particulate components, if it is injected too superficially, too densely, or in excessive amounts, there may be a risk of nodules or uneven texture.

 

That is why the important questions are:

which area to treat,
at what depth,
at what interval,
and how much product should be distributed.

 

Ultimately, the effects of Juvelook are not determined by the product alone.

Skin thickness, pore condition, scar depth, injection depth, dilution method, and treatment interval
all need to be considered together.

 

To summarize, Juvelook is a PDLLA-based collagen biostimulator.

Rather than being a filler that immediately creates large volume, it can help gradually improve skin texture, fine wrinkles, pores, and shallow unevenness over time.

 

In the study by Seo et al., after two to three treatment sessions at four-week intervals, significant changes were observed in several areas, including fine wrinkles, skin texture, and irregular pigmentation.

Histologic findings also showed an increase in collagen and elastic fibers.

 

However, it cannot be applied to every skin type in the same way.

It is important to first determine whether your skin truly needs a collagen biostimulator, or whether filler, lifting, or laser treatment should come first.

 

In the end, skin treatments are not simply about using one good device or one good product.

The difference comes from accurately identifying what kind of change your face actually needs :)

 

This was Director Won Dae-han.

 

Thank you for reading.

 

Source: Seo SB, Park H, Jo JY, Ryu HJ. Skin rejuvenation effect of the combined PDLLA and non cross-linked hyaluronic acid: A preliminary study. Journal of Cosmetic Dermatology. 2024;23(3):794-802. DOI: 10.1111/jocd.16085.

 

※ This article is intended for general medical information only. Actual suitability and treatment methods may vary depending on each individual’s skin condition, facial structure, and skin thickness. An accurate diagnosis and treatment plan should be determined through consultation.