Independent field guide · Compare
K-beauty treatments compared: which does what
Rejuran vs skin booster vs Juvelook, Botox vs filler, Ultherapy vs Thermage — what each actually does, downtime, and how long it lasts. Neutral, no clinic ranking.
6 min read
The names blur together fast: Rejuran, skin boosters, Juvelook, Botox, filler, Ultherapy, Thermage. They're not competing versions of one thing — they do different jobs. The honest answer to "which is better" is almost always "depends on what you're trying to fix."
Here's a plain-English comparison of the treatments visitors ask about most, so you walk into a consultation knowing the difference. A clinic confirms what's actually suitable for you.
Section 01
Skin-quality injectables: Rejuran vs HA skin booster vs Juvelook
These all go just under the skin to improve quality — hydration, texture, firmness — rather than reshape the face. They differ in the active material and what they're best at. Most are a short course spaced a few weeks apart, with minimal downtime.
| Treatment | What it is | Best for | Downtime | Sessions |
|---|---|---|---|---|
| Rejuran (PDRN / "salmon DNA") | Polynucleotides that support skin repair | Overall skin quality, fine texture, resilience | Minimal — possible small bumps/bruising 1–2 days | Often 3–4, ~2–4 weeks apart |
| HA skin booster (e.g. "물광" / aqua glow) | Micro-injected hyaluronic acid | Deep hydration, glow, dullness | Minimal — pinpoint marks settle in a day or two | Often a short course, then maintenance |
| Juvelook / collagen stimulators (PDLLA/PLLA) | Biostimulator that prompts your own collagen | Gradual firmness, skin density over months | Minimal — results build slowly | Usually a few, weeks apart |
Directional, neutral descriptions — not medical advice. The clinic confirms what suits your skin and which product they use.
Section 02
Botox vs filler vs skin booster
These three are constantly confused but do opposite jobs. They're often used together precisely because they address different things.
| Treatment | Does what | Typical use | Lasts |
|---|---|---|---|
| Botox | Relaxes a muscle | Lines from movement (forehead, frown, crow's feet); jaw/calf slimming | ~3–4 months, varies |
| Filler | Adds volume / structure | Cheeks, lips, chin, under-eye, nasolabial folds | Months to a year+, by product/area |
| Skin booster | Improves the skin itself | Hydration, glow, fine texture — not volume or wrinkles from movement | Course-based; maintenance |
What's right depends on your concern and face — the clinic assesses and confirms. We don't recommend specific products or doses.
Section 03
Non-surgical lifting: Ultherapy vs Thermage vs Oligio
These are energy devices that tighten skin and stimulate collagen without surgery. They differ in the energy type and sensation; there's no single "best" — it depends on your skin and goals. Results build gradually.
| Device | Energy | Known for | Downtime |
|---|---|---|---|
| Ultherapy | Focused ultrasound (HIFU) | Lifting/tightening, reaches deeper layers | Low — possible redness/tenderness briefly |
| Thermage | Monopolar radiofrequency (RF) | Tightening + skin texture over a broad area | Low — mild redness/swelling possible |
| Oligio / Titanium (RF) | Radiofrequency | Tightening; often more comfortable, competitive pricing | Low |
Energy lifting builds over weeks to months — it's an investment in how skin looks after the trip, not an instant change. The clinic recommends a device after assessing skin laxity.
Frequently asked
Frequently asked
What's the difference between Rejuran and a skin booster?
Both are micro-injections that improve skin quality rather than add volume, but the material differs. Rejuran uses polynucleotides (PDRN, "salmon DNA") to support skin repair and resilience; a classic skin booster injects hyaluronic acid for deep hydration and glow. Many people do one or the other based on their main concern — the clinic recommends which fits your skin.
Is Botox or filler better for wrinkles?
They treat different wrinkles. Botox relaxes the muscle that creates lines from movement (forehead, frown, crow's feet). Filler adds volume to fill static folds or restore lost volume (cheeks, under-eye, nasolabial folds). Often they're combined. The right choice depends on whether your lines come from movement or volume loss — the clinic assesses this.
Ultherapy vs Thermage — which should I get?
Neither is universally "better." Ultherapy uses focused ultrasound and is known for lifting deeper layers; Thermage uses radiofrequency and is known for tightening plus skin texture over a broad area. The right pick depends on your skin laxity, age, and goals, and both build results gradually over weeks to months. The clinic recommends based on assessing your skin.
What is a 'Chanel injection' / 물광 / exosome?
These are nicknames and categories you'll see on Korean menus. "물광" (mulgwang, "aqua glow") usually means a hyaluronic-acid skin booster; a "Chanel injection" is a nickname for a mesotherapy-style skin cocktail; exosomes are a newer skin-quality treatment often paired with lasers. See our K-beauty glossary for the full term decoder, and let the clinic confirm what a given menu item actually contains.
Related guides
Related guides
Botox in Korea: what visitors ask, from types to prices
Ultherapy vs Thermage in Korea: which lifting treatment, and why prices differ
Rejuran in Korea: what a treatment course actually involves
Dermal filler in Korea: areas, products, and how it differs from Botox and boosters
Collagen stimulators in Korea: Juvelook, Sculptra, and the PLLA/PDLLA family
Related treatments
This guide is general information to help you prepare — it is not medical advice. Suitability, the final treatment plan, and pricing are confirmed only by a licensed clinic.
Before you book, verify the clinic yourself
This is general information, not a recommendation of any clinic. Check any clinic on Korea's official foreign-patient registry and use our verification checklist.