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Skin Booster
Juvelook Skin Booster
A collagen stimulator, not a filler. Nothing much happens on the day. That is how it is supposed to work.
Procedure time
20–30 minutes, after numbing
Anaesthesia
Topical numbing cream
Sessions
Usually 3, about a month apart
Downtime
Swelling or bruising, 1–3 days
Your own collagen, on a schedule
What is Juvelook?
Juvelook is an injectable skin booster that combines poly-D,L-lactic acid (PDLLA) microspheres with a small amount of hyaluronic acid (HA). It is a collagen stimulator, not a filler: the hyaluronic acid smooths the skin for a short time, while the PDLLA prompts your skin to make new collagen of its own and is then gradually broken down. Most people have three sessions spaced roughly a month apart, and the change tends to show between week four and week eight.
So this is not a filler. A filler gives you a result the same day. A collagen stimulator gives you a result in a couple of months, made of your own tissue.
If you need a visible change by a fixed date, we will tell you to choose something else.
Three things happen, in order
How does Juvelook work?
The order matters, because it explains why week two looks like nothing worked.
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Placed in the dermis
Porous microspheres are placed in the dermis, shallower than a volumising filler sits. Depth is the single biggest factor in whether the result looks even.
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Your skin responds
The spheres act as a scaffold and trigger a mild, deliberate response that wakes up fibroblasts. New collagen grows on and between them over the following weeks.
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The polymer leaves
The lactic acid breaks down and clears. What stays behind is the collagen your skin made — which is why the effect keeps improving after the last session.
Treatment areas
Where it is usually placed
Chosen for skin quality. Volume loss is a separate problem with separate answers. Which areas suit you is decided after your skin is examined.
Cheeks
Crepey texture and dullness across the mid-face.
Nasolabial folds
The area with the most direct published evidence for this product.
Around the mouth
Fine vertical lines where skin has thinned.
Jawline and neck
Early laxity, where the goal is firmness.
Forehead
Surface texture, treated conservatively.
Décolletage
Sun-related crepiness on the chest.
Who it is for
A good fit when texture is the problem
It suits some concerns and not others. Better to hear that at consultation than after three sessions.
- Skin that looks thin or crepey rather than deflated
- Early laxity, where firmness is the concern
- Anyone who prefers a change nobody can date
- Patients who have had filler and want skin quality treated separately
- People able to commit to a course of three visits
- Visitors who can return, or start a course before travelling
Not suitable, or not yet
- Pregnancy or breastfeeding: there is no safety data
- Active infection or inflamed acne at the site
- Keloid tendency, or active autoimmune skin disease
- Under-eye hollows: we approach the tear trough conservatively, or not at all
- Sagging or lost volume: this treatment will not lift a face
Delayed nodules are the risk worth understanding before you consent. We cover it in detail here.
Planning it around a trip
Juvelook in Seoul: what visitors usually want to know
Juvelook is one of the treatments people travel to Korea for, partly because it is not widely offered in the US. Here is how it fits around a trip.
It works on a schedule
Juvelook stimulates your own collagen, so the change builds over weeks rather than appearing on the day. A usual plan is around three sessions about a month apart. If you are only in Seoul once, one session is still worthwhile, but it helps to know that the full effect comes from the series.
If you visit more than once
Many visitors book the first session on one trip and the next on a return visit, or plan a longer stay to fit two sessions in. We plan the interval around your travel dates rather than the other way round.
Juvelook or Juvelook Volume?
Standard Juvelook is used for skin quality — fine lines, thin or crepey skin and texture. Juvelook Volume has larger particles and is used where gentle volume is also needed. Which one suits you is decided at the consultation.
How it compares with Sculptra and Rejuran
Sculptra is also a collagen stimulator, but it is generally used for broader volume loss. Rejuran is a polynucleotide skin booster that focuses on repair and skin quality rather than collagen building. Some people have Juvelook and Rejuran together; the order and spacing matter.
After treatment and flying
Expect small bumps, swelling or a bruise for one to three days. Flying a day or two later is generally fine. Leave yourself a few days before photos or an event.
About price
The cost depends on the product and the amount used, so you get a clear quote after the consultation, before anything is done.
Go deeper
The full detail, article by article
This page is the short version. Each question below gets its own article, written the same way, with the evidence set out including where it is thin.
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Basics
Is Juvelook a filler? What a collagen stimulator actually does
A filler occupies space. A collagen stimulator asks your skin to build its own.
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Comparison
Juvelook vs Rejuran vs HA skin boosters: which does what
Three treatments people are told are interchangeable. They are not.
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Timeline
Juvelook results timeline: why week two looks like nothing
The most common worry after a first session, and why it is expected.
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Risks
Juvelook delayed nodules: why a lump can appear months later
Why they appear late, which areas carry more risk, and what we do about them.
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Before & after
Juvelook before and after: what the photographs cannot tell you
When a fair pair is taken, and why this result is the kind that photographs badly.
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Evidence
The research behind our practice
Peer-reviewed papers our doctors have authored, with study types labelled.
Read now →
Questions
Asked most often
Is Juvelook a filler?
No. A filler occupies space and gives a result on the day. Juvelook contains a little hyaluronic acid that behaves that way briefly, but its main ingredient works by prompting your skin to build collagen over the following weeks. If you want same-day volume, a filler is the honest answer.
How many sessions will I need?
Three is the usual course, about a month apart. Some people are advised fewer or more depending on skin thickness and the area treated.
Why did my result disappear after two weeks?
It had not started yet. The early smoothing comes from hyaluronic acid and is temporary by design. The collagen response usually becomes visible from around week four to eight.
What if I get a lump months later?
Tell us as soon as you notice it. Delayed nodules are the characteristic risk of this class of product and are usually manageable, and much easier to treat early. If you have already returned home, contact us anyway and we will help you find appropriate local care.
Can I have it done under the eyes?
We are cautious there. Nodular reactions in the tear trough are specifically documented, and the skin is thin enough that small irregularities show. We often recommend a different approach for that area, and we will tell you so at consultation.
Is one session of Juvelook worth it?
It can be, especially for skin texture, but most of the visible change comes from a series. If you can only have one session, we will tell you what to realistically expect from it.
Does Juvelook hurt?
We apply topical numbing cream for 20 to 30 minutes first, and the injections themselves take about 20 to 30 minutes. Afterwards, small bumps, swelling or a bruise for one to three days are usual.
Can I get Juvelook in the US?
It is not widely offered in US clinics, which is one reason people plan it into a trip to Korea. If you want to continue at home, ask your doctor what they offer that works in a similar way.
Juvelook or Sculptra?
Both stimulate collagen. Sculptra is usually chosen for broader volume loss; Juvelook is more often used for skin quality and delicate areas. The right choice depends on whether your main concern is texture or volume.
Juvelook or Rejuran?
Juvelook builds collagen; Rejuran is aimed at repair and overall skin quality. They answer different concerns and can be combined, with the right spacing.
How long does Juvelook last?
Results are commonly described as lasting many months after a full series, but it varies with age, skin and lifestyle. Maintenance sessions keep the effect going.
Evidence
What the published work shows
These are the papers behind the statements on this page. Each note says what the study covers and where it stops short, because none of them is a study of this exact product in this exact protocol.
Show the papersHide the papers
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A Randomized, Evaluator-Blinded, Multicenter Study to Compare Injectable Poly-D,L-Lactic Acid vs Hyaluronic Acid for Nasolabial Fold Augmentation
260 patients, randomised against hyaluronic acid, followed for 52 weeks. At 24 weeks 67.6% of the PDLLA group improved by at least one grade on the Wrinkle Severity Rating Scale, against 60.9% for hyaluronic acid.
What it does not show
this trial used AestheFill rather than Juvelook, and gave one injection rather than a course of three, so it supports the material itself, not this brand or this schedule.
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Poly-D,L-Lactic Acid Stimulates Angiogenesis and Collagen Synthesis in Aged Animal Skin
Supports the mechanism described above: PDLLA prompts new collagen rather than occupying space.
What it does not show
this is an animal study. It explains how the material behaves in tissue; it does not measure a cosmetic outcome in patients.
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Delayed Complications following Dermal Filler for Tear Trough Augmentation: A Systematic Review
Fifty-two reported cases of delayed complications after tear trough filler, with a mean onset of 16.8 months. Lumps and nodules were the second most common problem, and the review notes that synthetic fillers such as poly-L-lactic acid were more likely to cause them than hyaluronic acid. This is why we are cautious under the eyes.
What it does not show
the cases involve poly-L-lactic acid, a related but not identical material.
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Late-onset immune-mediated adverse effects after poly-L-lactic acid injection in non-HIV patients
One of the papers that established delayed nodules as a real risk of this class of product rather than an anomaly, with long-term follow-up.
What it does not show
again poly-L-lactic acid, and an older cohort than the products in use today.
Our own doctors have published a review of skin boosters covering hyaluronic acid, poly-L-lactic acid, poly-D,L-lactic acid, polydeoxyribonucleotide and polynucleotides (Yi K, Park M, Ree Y, Kim HM. Korean Association for Laser Dermatology and Trichology 2023;4:1–5). It is published in a Korean society journal that is not indexed on PubMed, so there is no link to give. The full list is on our Journal Articles page.
Links checked 18 September 2026.
From our channels
Want a Juvelook video?
Tell us and we will count it. We film what people actually ask about, and this button is how that gets recorded.
Not sure this is the right treatment?
That is what the consultation is for. We will look at your skin and tell you what we would recommend and what we would leave alone, including if the answer is nothing for now.
Book a consultation
General information, not medical advice for your individual case. Juvelook is licensed for use in Korea; licensing differs by country. See our Medical Disclaimer and Medical Review Process.
Medically reviewed by Hyoung Moon Kim, MD, PhD on 19 September 2026.
From the team at Maylin Clinic Apgujeong, an English-speaking skin clinic at 815 Eonju-ro, Seoul. See location and opening hours.