Why you must choose the right type of skin booster based on its ingredients

Skin boosters are not a single product name. It is a general term for injectable procedures that directly inject active ingredients into the dermal layer to improve the quality of the skin itself. Therefore, the question "Which skin booster should I get?" is actually the same as asking "Which ingredients should I put in?" Broadly speaking, they are classified into the Hyaluronic Acid (HA) family for replenishing moisture, the PN/PDRN family for helping regeneration and elasticity, the PLLA family for stimulating collagen production, and the emerging category of the Exosome family.

This is where they are decisively different from topical cosmetics. Cosmetics stay in the stratum corneum, but skin boosters push ingredients mostly into the upper to mid-dermis (about 1.5 to 3 mm). Since this is a method that signals the skin to improve on its own, it only becomes meaningful when the ingredients match your concerns. Let's break them down one by one by type below.

🧴 How are skin boosters different from fillers and Botox?

Although they are the same injections, their purposes are completely different. Fillers fill volume, Botox relaxes muscles, and skin boosters change the skin texture itself. If you confuse these three, you will end up expecting the wrong procedure.

• Fillers: Fill sunken areas to create shape (nasolabial folds, lips, etc.)

• Botox: Relax overactive muscles to reduce wrinkles

• Skin boosters: Elevate skin texture and elasticity with moisture, regeneration, and collagen

The core target of action is fibroblasts. These are cells that produce collagen and elastin. The various ingredients of skin boosters eventually awaken these cells to induce the skin to regenerate itself. As the three procedures have different purposes, they are often designed to be performed together.

📌 Core Summary: Fillers are for volume, Botox is for muscle relaxation, and skin boosters are for skin quality improvement. Their purposes are different, so do not get confused.

💧 HA (Hyaluronic Acid) family — The identity of Mulgwang (water-glow) injections

The most familiar to the public, Mulgwang injections, are HA-based skin boosters. Therefore, the question "Are Mulgwang injections and skin boosters the same?" often comes up, and it is accurate to say that Mulgwang injections are a type of skin booster.

The main purpose is hydration, radiance, and skin texture improvement. It is a good fit for dry, dull skin and cases where fine wrinkles are prominent. The effect appears relatively quickly, so you often feel moisture within a few days to 2 weeks.

A major advantage of the HA family is safety. Even if side effects or lumping occur, they can be dissolved with an enzyme called hyaluronidase. It is good to remember that HA is virtually the only ingredient capable of this reversal. For reference, in the clinical trials of Skinvive, an FDA-approved HA product, more than 89% of patients experienced improvement in skin roughness at 1 month post-treatment, and the effect was reported to last up to 6 months.

📌 Core Summary: Mulgwang injection = HA family. It focuses on moisture and radiance, and is the only family that can be dissolved with enzymes in case of problems.

🐟 PN/PDRN family — The pillars of regeneration and elasticity

Along with HA, the PN (polynucleotide) family is one of the two major pillars of skin boosters. Derived from salmon DNA, Rejuran Healer is synonymous with this family.

The purpose is not moisture, but regeneration and elasticity. Because it aims to pull up recovery power from deep within the skin, it is often chosen for irritated skin or skin lacking elasticity. Clinically, Rejuran (PN) has been reported to improve skin elasticity and moisture content by about 20% each at 4 weeks post-treatment. The effects generally appear gradually over 2 to 4 weeks.

What people often confuse is the difference between PN and PDRN. Both are DNA fragment families, but their molecular sizes are different. PN is a relatively long DNA chain, while PDRN is a smaller fragment, with PDRN focusing more on anti-inflammation and tissue recovery. Although they are often lumped together under the same family, there are subtle differences in their purposes.

One more thing. Lines are divided even within the same brand, such as Rejuran Healer (focused on regeneration) and Rejuran HB (enhanced moisturizing by mixing HA). Even if the names are similar, the goals are different, so it is best to check during the consultation.

📌 Core Summary: PN/PDRN is for regeneration and elasticity. Rejuran is representative. PN is a long chain and PDRN is a small fragment, so their purposes are slightly different.

🧬 PLLA·PDLLA·CaHA family — The way of stimulating collagen

If the previous two families focus on replenishing ingredients, this family consists of biostimulators that stimulate the skin to produce its own collagen. Juvelook (PDLLA) and Sculptra (PLLA) belong here.

The characteristic is that it is slow but long-lasting. The effects generally appear gradually over 1 to 3 months. It is considered when you want fundamental skin density, pores, and elasticity rather than quick results. In the Juvelook (PDLLA) clinical trial, more than half of the subjects showed over 50% improvement in fine wrinkles and rough skin texture, and collagen and elastin density were reported to have significantly increased in histological examinations.

CaHA (calcium hydroxylapatite) is also used as a collagen-stimulating skin booster when diluted and injected. However, this collagen-stimulating family is different from HA in that it cannot be reversed with hyaluronidase. Therefore, the practitioner's judgment and injection technique become more critical.

📌 Core Summary: PLLA·PDLLA·CaHA are collagen-stimulating types. They are slow and long-lasting, but reversal is difficult.

✨ Exosomes/PRP — The emerging category and self-regeneration

Exosomes are stem-cell-derived extracellular vesicles aimed at delivering regenerative signals. One study reported up to a 3-fold increase in collagen and a 13-fold increase in elastin, but since this is a single study result, we should be cautious about overinterpreting it. Above all, approval and safety issues are key variables. This is a category where you must check the approval and indications of the Ministry of Food and Drug Safety.

PRP/PRF (platelet-rich plasma) is a self-regenerative method of injecting ingredients separated from one's own blood. While it offers a sense of security from using one's own blood, standardization is difficult and individual differences are large.

One thing must be made clear. Using unapproved injection ingredients poses legal and safety issues. For emerging ingredients, checking official approval should come first, rather than relying on claims of effectiveness.

📌 Core Summary: Exosomes and PRP are regenerative, but safety confirmation comes first due to approval and standardization issues.

📊 Comparing skin booster types at a glance

The treatment interval also varies for each family. HA is typically 2 to 3 times at 2 to 4-week intervals, PN/PDRN is 3 to 4 times at 2 to 4-week intervals, and collagen-stimulating families involve observing for several months after 1 to 3 sessions. Commonly, meaningful changes appear through repeated treatments at 2 to 4-week intervals rather than a single session.

📌 Core Summary: The purpose, onset of effect, and interval vary by family. Do not make hasty decisions, and plan accordingly.

🎯 Which one should I choose for my skin?

The criteria for selection are simple. It's not that more expensive is better, but what is good is that the ingredients match your concerns.

• Dry, dull skin, radiance → HA (Mulgwang)

• Regeneration, elasticity, tired skin → PN/PDRN (Rejuran, etc.)

• Collagen induction, pores, skin density → PLLA·PDLLA (Juvelook, etc.)

If dryness and loss of elasticity are simultaneously a concern, two families with different characteristics can be combined, or different lines can be blended. Since this is where judgments can diverge, a consultation is necessary.

Onlif Clinic focuses on non-surgical procedures that relieve skin concerns such as aging and loss of elasticity, rather than plastic surgery that changes the shape of the eyes, nose, or mouth. Skin boosters correspond to the hydration and skin barrier pillar among these, and when necessary, they can be designed alongside elasticity procedures such as ultrasound HIFU or radiofrequency RF. This is also why we divide responsibilities among doctors for each procedure, based on the philosophy that "one person cannot do everything perfectly."

For reference, the skin booster market is growing rapidly. The global size is predicted to grow at a compound annual growth rate of 10.9% from approximately $1.42 billion in 2025 to approximately $2.43 billion in 2030. The domestic market is also projected to grow by about 16% annually from approximately $86.5 million in 2024. As there are more options available, the discernment to choose wisely has become more important.

📌 Core Summary: Matching ingredients to your concerns is key. Since multiple families can be combined, diagnosis comes first.

🩹 Post-treatment care and precautions

Immediately after the procedure, embossing, where the injection sites appear bumpy, occurs. It usually subsides within a few hours to 3 days, but depending on the area or product, it can last for over a week.

The common care guidelines are as follows:

• Refrain from drinking alcohol, going to saunas, and intense exercise for 1 week

• Use sunscreen and moisturize sufficiently

• Refrain from using irritating ingredients such as retinol or AHA/BHA for a few days after the procedure

• Do not arbitrarily stop prescribed medications such as anticoagulants, but consult with medical staff

Although rare, if there are abnormal signs such as blood vessel-related issues, severe pain, or vision abnormalities, you must visit the clinic without delay. Furthermore, if you are pregnant, breastfeeding, have a keloid constitution, or have a specific immune disease, it is safe to inform the staff before the procedure.

📌 Core Summary: Refrain from alcohol, saunas, and exercise for 1 week. Sunscreen and moisturizing are essential. For abnormal signs, head to the clinic immediately.

❓ Frequently Asked Questions (FAQ)

Are skin boosters and Mulgwang injections the same?

Mulgwang injection is a general term for HA (hyaluronic acid)-based skin boosters. In other words, Mulgwang injections are a type of skin booster. If the goal is moisture and radiance, choose Mulgwang injections; if the goal is regeneration and elasticity, go for the PN family, depending on your purpose.

What is the difference between Rejuran and Juvelook?

Rejuran is a PN family focusing on regeneration and elasticity, while Juvelook is a PDLLA family focusing on collagen stimulation. Since their purposes differ, they are sometimes designed together, but the order and combination vary depending on skin condition, so a diagnosis is required.

Are PN and PDRN the same ingredient?

Both are fragment families derived from salmon DNA, but their molecular sizes are different. PN is a relatively long DNA chain, and PDRN is a smaller fragment with more focus on anti-inflammation and tissue recovery. Although they are grouped under the same family, there are subtle differences in their purposes.

How many sessions are needed to see effects and how long do they last?

Generally, meaningful changes appear when repeated several times at 2 to 4-week intervals. The process involves 2 to 3 sessions for HA, 3 to 4 sessions for PN/PDRN, and observing for several months after 1 to 3 sessions for collagen-stimulating families. The maintenance period varies depending on ingredients and individual differences.

Are exosome injections safe?

Exosomes are an emerging category aimed at delivering regenerative signals, and checking Ministry of Food and Drug Safety approval and indications is critical above all else. Since using unapproved ingredients can pose legal and safety issues, we recommend checking official approval first rather than just focusing on effectiveness.

Should I avoid Rejuran (PN) if I have a fish allergy?

Since PN is an ingredient derived from salmon DNA, you must inform the medical staff before the procedure if you have a fish allergy. In this case, other families such as HA can be considered, so it is safe to verify during the consultation.

Is an expensive skin booster unconditionally more effective?

No. Matching the ingredients to your skin concerns is far more important than price. Selecting what suits your purpose, such as HA for dryness, PN/PDRN for regeneration and elasticity, and PLLA for collagen induction, is the standard for cost-effectiveness.

What to check before choosing a clinic for skin boosters

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

Asking these items directly during the consultation will help you make a decision:

• Is this a place that performs that procedure frequently? — Clinics have different focal procedures. Check if it is a place that regularly conducts skin boosters.

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

• Do they explain the breakdown of costs? — Rather than just hearing the total amount, you should hear explanations about which product is used, how much, and on which areas to make a proper judgment.

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

• Do they explain adverse reactions and recovery processes beforehand? — It is better to judge a place that informs you of possible adverse reactions and coping methods, rather than a consultation that only speaks of expected changes.

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

Onlif Clinic performs skin boosters like this

• We divide responsibilities — Based on the belief that a single doctor does not handle every procedure, Onlif divides medical treatment with responsible doctors for each field.

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

• Costs are guided along with the breakdown after diagnosis — Since the areas, dosage, and range differ for each person, we explain what costs how much together.

• We design looking at the balance of the entire face — We look at the face through the three pillars of texture, balance, and youth signals, and plan to tidy up parts that obscure your natural expression rather than changing the shape.

• We explain adverse reactions and recovery processes beforehand — Along with expected changes, we guide you through individual differences, possible adverse reactions, and countermeasures before the procedure.

• We review the progress together after the procedure — If verification is needed during the recovery period, we provide guidance on re-visiting and communication channels.

If you are considering skin boosters, it is best to first check what is possible and what is difficult in your current state.

Accurate diagnosis and treatment planning can only be determined through in-person consultations. Check it out through a consultation at Gangnam Onlif Clinic.