The Difference Between Rejuran and JuveLook: How Do These Skin Boosters Differ?

Rejuran and Juvelook are both categorized as skin boosters, but they are completely different in nature. Rejuran Healer focuses on 'regeneration' to revive tired skin, whereas Juvelook is a 'collagen booster' that stimulates the skin to produce new collagen. Therefore, it is easier to think of Rejuran as being more suitable for dry, thin, and sensitive skin, and Juvelook as being more suitable if you are concerned about pores, skin texture, and scars.

Neither is a procedure that immediately fills volume like filler, and they are usually administered in multiple sessions rather than a single treatment. Since their ingredients function differently, the speed at which effects appear and the management focus also differ. Let's break them down in simpler terms below.

🧬 Differing Ingredients

The main ingredient of Rejuran is **PN (Polynucleotide)**. This is a DNA-derived substance extracted from salmon or trout testes, which helps the skin recover on its own. The PN concentration of the Rejuran Healer line is known to be approximately 2% (20 mg/mL).

Juvelook is a complex ingredient consisting of PDLLA (biodegradable polymer particles) mixed with hyaluronic acid (HA). HA initially provides moisture and hydration, and over time, the PDLLA particles stimulate fibroblasts in the skin to produce new collagen.

To sum it up in one sentence, Rejuran is 'injecting substances that help skin regeneration', and Juvelook is 'stimulating the collagen factory to run again'.

Rejuran is a product made by PharmaResearch in Korea and is approved by the Korean Ministry of Food and Drug Safety (KFDA). Although Juvelook's PDLLA is similar to PLLA of Sculptra, which is a similar collagen booster, their formulations and ingredient compositions are not identical.

📌 Key Summary: Rejuran targets regeneration with PN, while Juvelook targets collagen production with PDLLA+HA.

⏱️ When do the effects appear, and how long do they last?

There is a difference in how quickly the effects appear. With Rejuran, you tend to feel an improvement in skin texture in about 2 to 4 weeks after the procedure, whereas Juvelook takes about 4 to 8 weeks to be fully noticed because it takes time for collagen to be produced.

Instead, Juvelook tends to have a longer maintenance period. Rejuran is known to last for about 6 months to 1 year based on 3 treatments, while Juvelook is known to last for about 12 months or longer. In other words, if you want quick recovery, Rejuran is suitable, and if you want long-lasting collagen improvement even if you have to wait a little, Juvelook is suitable.

However, these numbers vary depending on skin condition and treatment method, so it is best to take them only as 'average trends'.

📌 Key Summary: Rejuran is felt quickly, while Juvelook takes longer to work but lasts longer.

📅 How many sessions and at what intervals?

Neither is a procedure that is completed in one session. Since the ingredients work gradually inside the skin, real changes accumulate only when administered in a series of sessions.

Typically, Rejuran is recommended for 3 or more sessions at intervals of 2 to 4 weeks, and Juvelook for 2 to 3 or more sessions at intervals of 4 to 6 weeks. The reason the interval for Juvelook is longer is to allow sufficient time for collagen to be produced.

📌 Key Summary: Both are series of about 3 treatments, with Juvelook having longer intervals.

🎯 Which is right for my skin concerns?

The criteria for selection is ultimately 'what your skin wants'. It is divided by whether you need urgent regeneration and recovery, or urgent collagen and pore improvement.

• Dry, thin, and sensitive skin, fine lines, eye area → Rejuran Healer takes a gentler approach. There is a separate Rejuran Eye line for the eye area.

• Enlarged pores, rough skin texture, acne scars (boxcar, rolling) → Juvelook is advantageous for smoothing unevenness by filling it with collagen.

If acne scars are deeply pitted, Juvelook alone may not be enough, so combination treatments such as subcision, which detaches the tissue beneath the scar, may be considered. Whether such a combination is necessary is an area that can only be determined by directly examining your skin condition.

Rejuran also has a segmented lineup depending on the purpose. It is divided into Healer, Eye (I), S, and HB, allowing you to choose according to the area and purpose. The HB line is a type reinforced with HA to enhance moisturization. Juvelook is also divided into standard Juvelook for pores, texture, and scars, and Juvelook Volume (Lenisna) targeting volume and sagging.

📌 Key Summary: Rejuran is the basic direction for regeneration and sensitive skin, while Juvelook is for pores, texture, and scars.

⚠️ Side Effects and Care: Know This Before You Go

Both procedures have short downtimes, but swelling or bruising may occur for a few days. Rejuran leaves embossed bumps immediately after the procedure, which usually subside naturally within 1 to 3 days.

A point of greater concern with Juvelook is delayed reactions such as nodules (clumping) or granulomas. Since PDLLA does not dissolve with filler dissolver (hyaluronidase), managing clumping is trickier than with fillers if it occurs. Therefore, it relies relatively heavily on the practitioner's hand skills regarding how much is injected and at what depth.

For both procedures, it is recommended to avoid alcohol, saunas, intense exercise, and strong UV rays for about a week after treatment. Before the procedure, it is safe to inform the practitioner in advance about ingredients that easily cause bruising, such as anticoagulants, Omega-3, or Vitamin E, pregnancy/lactation status, and salmon-related allergies.

📌 Key Summary: Rejuran embossing disappears within a few days, while Juvelook nodules do not dissolve, requiring cautious management.

🤝 Can they be received together?

Yes, you can. Since their purposes are different, they can actually complement each other. For example, if your skin itself is dry and sensitive while your pores are also enlarged, you can consider a combination that addresses both regeneration and collagen.

However, whether to inject them together on the same day or separate them with a time interval depends on your skin condition. The same goes for the order and interval with other procedures like Botox, fillers, lasers, or radiofrequency (RF). Designing the sequence well, rather than an unreasonable combination, determines the results.

Onlif Clinic focuses on non-surgical treatments that refine the natural state of the skin, such as lifting, skin boosters, fillers, ultrasound HIFU, and radiofrequency RF, rather than incisional plastic surgery. This is why, even when choosing a single skin booster, we first look at 'what is lacking in your skin now' rather than 'what more to fill'.

📌 Key Summary: Combination is possible, but designing the sequence and intervals is more important than the combination itself.

❓ Frequently Asked Questions (FAQ)

Which is better for pore improvement, Rejuran or Juvelook?

Generally, Juvelook is more focused on pore improvement. Because it works by producing new collagen to fill the skin texture and the area around the pores, Juvelook is more considered if enlarged pores are your main concern. However, if your skin is sensitive, the approach may need to be different.

Which is more suitable for acne scars?

For boxcar or rolling acne scars, Juvelook, which fills collagen, is often chosen. If the scars are deep, procedures like subcision may be considered together. Since the direction depends on the shape of the scar, it is best to make a judgment after seeing the actual skin.

Can I receive Rejuran and Juvelook together on the same day?

It is possible, but whether to do them on the same day or separately depends on your skin condition. In some cases, synergy can be expected due to the differing purposes of the two treatments, but at other times, it may be better to leave an interval to reduce burden.

What should I do if nodules form after Juvelook?

Juvelook's PDLLA does not disappear with dissolvers like fillers do. Therefore, if nodules occur, you may need to observe the progress over time or require separate treatment, so you must inform and consult the place where you received the procedure.

How many sessions of Rejuran are needed to see results?

It is usually recommended to receive a series of 3 or more treatments at intervals of 2 to 4 weeks. Although you can feel hydration even after a single session, repeated treatments are necessary for regenerative effects to accumulate.

When do the effects of Juvelook start to be felt?

Since it takes time for new collagen to be produced, it is usually fully noticed from about 4 to 8 weeks after the procedure. You do not need to be disappointed if you do not see immediate changes.

Can Juvelook be dissolved like a filler?

No. Hyaluronic acid fillers can be adjusted with dissolvers, but Juvelook's PDLLA does not dissolve that way. That is why it is important to receive the initial procedure carefully.

Which is better if my skin is thin and sensitive?

In general, Rejuran Healer, which focuses on regeneration and recovery, approaches sensitive and thin skin more gently. However, as there are individual differences, it is safe to decide after checking the condition directly.

How long is the downtime after the procedure?

Both have relatively short downtimes. For Rejuran, embossing bumps subside within 1 to 3 days, and swelling or bruising is usually resolved within a few days. It is recommended to avoid alcohol, saunas, intense exercise, and UV rays for about a week after the procedure.

Rejuran vs. Juvelook Differences: Things to Check Before Choosing a Clinic

Even for the same procedure, the results and recovery process vary depending on where, by whom, and how it is performed.

Asking these questions directly during your consultation will help you make a decision.

• Is it a clinic that frequently performs that procedure? — Every clinic has different procedures they focus on. Check if it is a clinic that regularly performs and understands the differences between Rejuran and Juvelook.

• Can you verify the products and equipment used? — Ask if you can verify the product name and authenticity (whether it is an import-approved product and if there is a process to confirm its unboxing) during the consultation.

• Do they explain the breakdown of costs? — Rather than just hearing the total amount, you need an explanation of which product is used, how much, and on which area to make an informed decision.

• Do they design the treatment looking at the entire face? — Even for the same procedure, the placement and amount vary depending on face shape, skin condition, and left-right asymmetry.

• Do they explain adverse reactions and the recovery process first? — A clinic that informs you of potential adverse reactions and how to cope with them is better for making a decision than a consultation that only talks about expected positive changes.

• Is there a way to follow up after the procedure? — Check if the timing for progress checks, how to contact them if there is an issue, and criteria for follow-up visits are established.

Onlif Clinic Handles the Differences Between Rejuran and Juvelook Like This

• We divide responsibilities — Believing that a single doctor cannot master every single procedure, Onlif divides medical treatments among doctors specialized in each field.

• We verify products and equipment together during consultations — We guide you through the products used and the unboxing verification process during the consultation.

• We guide you on costs along with the treatment plan after diagnosis — Since the target area, dosage, and scope vary from person to person, we explain what costs what together.

• We design treatments looking at the balance of the entire face — We look at the face through three axes: texture, balance, and youth signals. Rather than changing your facial structure, we plan to clear up the parts that overshadow your natural impression.

• We inform you of adverse reactions and the recovery process first — Along with the changes you can expect, we guide you through individual differences, potential adverse reactions, and how to handle them before the procedure.

• We look at the progress together after the procedure — If verification is needed during the recovery period, we guide you on follow-up visits and contact channels.

If you are weighing the differences between Rejuran and Juvelook, it is best to first check what is possible and what is difficult in your current skin state.

An accurate diagnosis and treatment plan can only be determined through an in-person consultation. Find out through a consultation at Gangnam Onlif Clinic.