Rejuran and Juvelook are not rivals; they target different things. Rejuran places PN (polynucleotide) in the dermis to get fibroblasts working again, so it suits skin-condition concerns such as rough texture, fine lines and redness, and the change builds over a cycle of 3–4 sessions 4–6 weeks apart. Juvelook uses PDLLA with hyaluronic acid to prompt your own collagen, so it suits skin that has become thin and lost density, with the change appearing over 6–12 weeks across 2–3 sessions. COCO Clinic in Seoul offers both, and they are often used together, split by area or timing.
Short Answer: Skin Condition Versus Skin Thickness
Choose by what bothers you most. If the skin's condition is the problem — rough texture, fine lines, redness — Rejuran comes first. If the skin has become thin and lost density, Juvelook fits. If an area is hollow because structure itself is missing, a different booster such as Juveacell is the better match, and deep acne scars that are tethered from below call for subcision first. An in-person assessment confirms which applies.
What Rejuran and Juvelook Actually Are
Rejuran is PN (polynucleotide) purified from salmon and trout germ cells and injected into the dermis. It is not placed to create volume; it sets up the conditions for fibroblasts to work again, so the skin's condition changes as sessions accumulate. A dedicated Rejuran Eye formulation is used more shallowly around the eyes.
Juvelook combines PDLLA (poly-D,L-lactic acid) particles with hyaluronic acid. The hyaluronic acid gives a feeling of hydration right after treatment and is absorbed over time; the PDLLA breaks down gradually and, as it does, prompts the skin to make its own collagen, so the skin gains thickness and density. Juvelook Eye is used for thin areas such as under the eyes.
Both are skin boosters: they change the skin's quality rather than the shape of the face, which is what separates them from filler.
How the Two Compare
- What it works on: Rejuran — skin condition: rough texture, fine lines, redness and sensitivity. Juvelook — skin thickness and density; pores often change along with it, though that is not part of its approved indication.
- How the change comes: Rejuran builds as sessions accumulate, usually felt from the second or third session. Juvelook appears gradually over 6–12 weeks as collagen forms.
- Course: Rejuran — one cycle of 3–4 sessions 4–6 weeks apart, then maintenance set by how the skin looks. Juvelook — usually 2–3 sessions, with the interval set individually.
- After treatment: Rejuran — small bumps and redness at the injection points for a day to a few days, with possible bruising. Juvelook — swelling and bruising for a few days, plus a massage routine.
Neither is better overall. They are not competitors, and in practice they are often used together, split by area or by timing. For how Juveacell fits alongside the two, see Skin Boosters in Korea: What Each Type Actually Does. COCO Clinic puts every material through at least several months of clinical observation before adopting it.
Matching Each Treatment to Your Main Concern
Start with what you notice in the mirror:
- Rough texture, make-up that sits unevenly, fine lines, redness or sensitivity — a skin-condition concern, where Rejuran comes first.
- Skin that has become thin and lost density — a thickness concern, where Juvelook fits.
- An area that looks hollow because structure is missing — Juveacell is the better match.
- Depressed acne scars pulled down from beneath — subcision, which treats the cause directly, may come first.
Many people have more than one of these. The two boosters are often used together, split by area or by timing, and the order is planned for each person.
At COCO Clinic, a professional consultant provides a detailed one-on-one consultation. The doctor may also conduct a brief assessment before the procedure.
Sessions, Timeline, and How Long Results Last
At COCO Clinic, the course for each looks like this:
| Detail | Rejuran | Juvelook |
|---|---|---|
| Typical course | 3–4 sessions, 4–6 weeks apart, as one cycle | Usually 2–3 sessions; interval set individually |
| When change shows | Felt from the second or third session, building as sessions accumulate | Gradually over 6–12 weeks as collagen forms |
| After the course | Maintenance interval set by how the skin looks; sessions are not bundled in advance | About 12 months for Juvelook Volume; about 6 months for the texture, scar and pore product and for Juvelook Eye; varies by person |
Neither result shows right after the first visit. Rejuran is judged by how the skin looks at the end of the cycle, and Juvelook by how it looks 6–12 weeks on.
For an important date, start early: a full Rejuran cycle spans several months, and Juvelook needs 6–12 weeks to show. Because bruising is possible, leave at least a week between any session and the event.
Downtime, Side Effects, and Who Should Wait
Rejuran. Because the injections are spread over many points, numbing cream is applied for 20–30 minutes first, and pain is moderate to high. Small bumps and redness at the injection points usually settle over a day to a few days, and bruising is possible; avoid sauna and alcohol on the day. Rejuran is purified from salmon, so tell the clinic if you have a fish allergy. It is not done during pregnancy or breastfeeding or where the area is inflamed or infected, and blood thinners can make bruising more likely.
Juvelook. Swelling, redness, tenderness and bruising usually settle within a few days, and daily life is fine. A massage routine — five minutes, five times a day, for five days — helps the product spread evenly. Small nodules are occasional, and rarely a granuloma is reported. If you feel a small lump, massage it for one to two weeks — three to five times a day, three to five minutes each — and send the clinic a photo if it turns red, hurts, grows, or is still there after four weeks. Avoid sauna, strenuous exercise and heavy drinking for 1–2 weeks. It is not done during pregnancy or breastfeeding, or with inflammation, infection or active skin disease at the site. Tell the clinic beforehand about a keloid tendency, autoimmune or active inflammatory disease, or a known sensitivity to the ingredients.
Results vary between individuals.
What Juvelook Is Approved For
In Korea, Juvelook is licensed as a tissue-repair biomaterial for the temporary improvement of facial wrinkles in adults. Its use for skin density and pores is clinical experience beyond that indication, which is why COCO Clinic separates what can be expected from what cannot.
Planning a Skin Booster Visit in Seoul
Compare the full treatment plan, not a single per-session price. Number of sessions, injected amount, technique, and follow-up all vary by clinic. A useful checklist of questions:
- Which product will be used, and how much?
- How many sessions does the plan involve, and at what intervals?
- What is the follow-up plan?
- What happens if a reaction occurs after I return home?
- Who performs the injection?
COCO Clinic in Seoul offers both. Published prices, VAT included:
- Rejuran Eye 1 cc — ₩180,000
- Rejuran 2 cc — ₩330,000
- Juvelook Eye 4 cc — ₩300,000
- Juvelook Volume 8 cc (full face, density) — ₩500,000
The amount, area and number of sessions are set at the consultation, and sessions are not bundled in advance.
For visitors, neither fits a full course into one short trip: a Rejuran cycle is 3–4 sessions 4–6 weeks apart, and Juvelook is usually 2–3 sessions. A single trip can cover a first session and a consultation about the rest; Juvelook's change shows 6–12 weeks later, most likely after you are home. COCO Clinic's medical director is Dr. Jay, with 10+ years in skin anti-aging and face lifting.
A Simple Decision Guide and When to Ask a Clinician First
This guide narrows your options. It does not diagnose.
- If your main concerns are rough texture, fine lines, redness or sensitivity, start with Rejuran.
- If your skin has become thin and lost density, consider Juvelook.
- If an area is hollow, or acne scars are pulled down from beneath, ask about Juveacell or subcision instead.
- If you have more than one concern, the two are often combined, split by area or by timing.
Seek professional assessment first if your concerns are unclear, you have a history of reactions to injectables, you have an active skin condition, or an important event is only days away.
COCO Clinic's assessment is meant to match the treatment to the concern. It can point toward a different category entirely if a booster is not the right tool, such as lifting or Botox for shape-related concerns. If you would like to discuss your options, you can contact COCO Clinic through its verified channels. No result is promised.
Frequently Asked Questions
Is Rejuran or Juvelook better?
Neither is better in general; they target different things. Rejuran works on skin condition — texture, fine lines, redness — and Juvelook on skin thickness and density.
Which one shows results faster?
Neither shows its result right away. Rejuran builds as sessions accumulate, usually felt from the second or third session; Juvelook shows gradually over 6–12 weeks.
How long do Rejuran and Juvelook last?
Juvelook Volume lasts about 12 months, and the texture, scar and pore product and Juvelook Eye about 6 months, varying by person. For Rejuran, the maintenance interval is set after the first cycle by how the skin looks.
What is Juvelook approved for?
In Korea it is licensed as a tissue-repair biomaterial for the temporary improvement of facial wrinkles in adults; skin density and pores are clinical experience beyond that indication.
Can I have both treatments?
Yes. They are not competitors, and they are often used together, split by area or by timing; the plan is set for each person.
How much do Rejuran and Juvelook cost at COCO Clinic?
Rejuran Eye 1 cc ₩180,000 and Rejuran 2 cc ₩330,000; Juvelook Eye 4 cc ₩300,000 and Juvelook Volume 8 cc ₩500,000, VAT included. The final plan and cost are set at the consultation.
References
- [1] Skin Boosters in Korea: What Each Type Actually Does — COCO Clinic