Skin Boosters

Juvelook, Rejuran, and the rest of what Korea calls a skin booster.

Most patients arrive having heard a product name from a video, not a diagnosis from a doctor. Here is what these treatments actually are, and what separates them from one another.

The Category

A skin booster is not a filler.

The distinction sounds pedantic. It is the single thing most often misunderstood by patients arriving in Seoul, and it changes what you should expect from the result.

What a skin booster is for

Skin quality. It is injected into the skin to work on hydration, texture, fine lines and firmness — the surface and the layer just beneath it.

  • Improvement builds over multiple sessions
  • Change is in skin condition, not facial shape
  • Downtime is usually short
  • Effects are not permanent and require maintenance

What it is not for

Volume, contour or lift. If your concern is a sagging jawline or lost cheek volume, no skin booster will address it, and any clinic suggesting otherwise is selling rather than assessing.

  • It will not replace a filler
  • It will not replace a lifting procedure
  • It will not substitute for surgery where surgery is the answer
  • It will not fix pigmentation on its own

Why so many product names. Korea approves and launches injectable skin products faster than most markets, and clinics compete partly on carrying the newest one. That is genuinely an advantage — it also means the name you heard in a video may be a brand, a marketing package, or a combination session rather than a distinct medical treatment. The useful question is never "do you have it" but "what is in it, and why this one for me".

The Names You Have Heard

What is actually in each one.

These are the names international patients ask us about most often. They are grouped by what they are built from, because that is what determines which problem they suit.

Polynucleotide (PN / PDRN)

Rejuran

Built on polynucleotides derived from salmon DNA. It is generally positioned around skin repair and barrier recovery rather than volume or firmness, which is why it is often chosen for skin that is thin, irritated, or recovering from other treatment. Several variants exist for different areas of the face, and they are not interchangeable.

Collagen-stimulating polymer (PDLLA)

Juvelook

Built on PDLLA, a polymer intended to stimulate the skin's own collagen production, combined with hyaluronic acid for immediate hydration. Because collagen response is gradual, the effect is described in weeks and months rather than days. Frequently misspelled juveloom — there is no separate product by that name.

Cell-derived

Exosome treatments

A newer and less standardised category, often used alongside laser or microneedling rather than alone. This is the area where marketing language runs furthest ahead of settled evidence, and where knowing exactly what is being administered matters most.

On regenerative treatment claims →
Marketing name, not a product

"Makeup booster", "glass skin", event packages

These are clinic package names, not regulated products. They usually describe a combination session intended to improve skin surface before an event. The same term can mean quite different mixtures at two clinics on the same street. Ask for the specific products and quantities in writing before agreeing.

A note on comparison content. Most "A versus B" articles you will find are published by clinics that perform one of them. We do not sell any of these treatments and we do not receive product-linked payment, which is the only reason our comparison is worth what you paid for it.

Choosing

Which one suits which problem.

This is a starting orientation, not a prescription. The correct choice depends on your skin assessed in person, and frequently the correct answer is a device or a topical protocol rather than an injection at all.

If your concern is The category usually considered What often gets missed
Dull, dehydrated skin with fine surface lines Hydrating and collagen-stimulating boosters Sun protection and barrier care determine whether the result holds
Thin, easily irritated or over-treated skin Repair-oriented polynucleotide treatment The right answer may be to stop treatment for a period first
Loss of firmness across the lower face Not a booster — lifting or surgical assessment Boosters are frequently sold here, and frequently disappoint here
Acne scarring and texture irregularity Combination of device work and injectables Scar type dictates the protocol; one injectable rarely suffices
An event in two weeks Conservative surface treatment only Any treatment can bruise or swell; timing matters more than product

On pricing. We do not publish treatment prices, and we are wary of anyone who does. Injectable pricing in Korea varies by product, by quantity, by who is administering it, and by what is genuinely required for your skin rather than what can be sold in one visit. A per-session number quoted before anyone has looked at you is a marketing figure, not a quotation.

Before You Are Injected

Three things worth confirming.

These are the questions we ask on behalf of our patients. They are reasonable questions and a good clinic will answer them without hesitation.

Who is holding the needle?

Ask whether the physician who consulted you is the physician who will inject, and what their specialty board is. Dermatology and aesthetic practice are not the same credential, and in Korea both are verifiable. How verification works →

What exactly is being administered?

Product name, quantity in cc, and how many sessions the plan assumes. If a package name is given instead of contents, ask again. Written confirmation before treatment protects you far better than a receipt afterwards.

What happens if it does not settle well?

Ask who reviews you, when, and at what cost — before you fly home. Aftercare across borders is the part most patients discover too late, and it is a large part of what we exist to handle. See how we work →

This page is general information, not medical advice. No treatment described here is suitable for everyone, results differ between individuals, and nothing on this page should be read as a promise of outcome. Any decision should follow an in-person assessment by a licensed physician.

Where To Begin

Tell us the product name
you were given.

If a clinic or a video has recommended something specific, send us the name. We will tell you what it is, whether it fits what you actually described, and whether it is the right starting point at all.

Or, chat on WhatsApp →