Skin Boosters

Painless Re2O in Seoul: Planning Your Visit

A planning guide to Painless Re2O at RESUM Plastic Surgery Clinic in Gangnam: what this ECM booster is, how discomfort is managed, and how the sessions are spaced.

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Published: 2026-10-15

Updated: 2026-10-15

At a glance

Re2O replenishes human-derived ECM in the dermis: 89% collagen, with elastin and glycosaminoglycans (GAGs).
Numbing cream, local anaesthesia and a vibration device are used together. Some sensation from the injections remains.
Swelling, bruising and redness mostly subside within 3-5 days, and daily activities can resume the same day.

What is Re2O?

Re2O (Elravie Re2O) is a skin booster that puts extracellular matrix (ECM) back into the dermis. The material comes from human acellular dermal matrix (hADM): the factors that trigger immune reactions are removed, and the structural proteins are kept.

This sets it apart from Rejuran (PN) and Juvelook (PDLLA). Those two prompt the skin to produce collagen, whereas Re2O supplies the structure itself, namely 89% collagen with elastin and GAGs, spread in fine deposits across the face.

How long does a Re2O session take?

A Re2O session takes 30-45 minutes. Swelling, bruising or redness can follow and mostly subside within 3-5 days, so allow for that when you choose the day, and keep the first 2-3 days lightly scheduled. Sessions are spaced a month or more apart. Tell us your travel dates and Dr. Jin-Young Kim will plan the course with you.

Session	30-45 minutes
Anaesthesia	Topical anaesthesia in the treatment overview. Local anaesthesia and a vibration device are used with the numbing cream
Back to daily activities	Same day
Usual course	3 sessions, 2-3 months apart in the treatment overview. For a first course the clinic recommends 3-4 sessions about 1 month apart
How long it lasts	About 12 months

What Re2O cannot do

Re2O does not give immediate volume. If that is the priority, the doctor will suggest a cross-linked filler. Some hydration may show right after the session, but the dermal structure recovers gradually and 1 session rarely produces a large change. The injections are also not free of sensation, whatever the menu name suggests. Results vary between individuals.

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Purpose & suitability

You want the dermal structure itself replenished, not collagen production stimulated.

You have looked at Rejuran or Juvelook and want an ECM-based option with a different mechanism.

Discomfort during injections worries you and you want a protocol built to reduce it.

You are having laser, fillers or Botox and want support for dermal recovery alongside.

Treatment process

Assessment. The doctor looks at skin thickness and elasticity and at how much structural recovery the dermis needs, then confirms whether Re2O is suitable.
Pain reduction. Numbing cream and local anaesthesia are applied, and a vibration device is used during the injections.
ECM injection. The ECM material, containing collagen, elastin and GAGs, is distributed in fine deposits through the layers of the dermis.
Course plan. Later sessions are spaced, and the timing of maintenance afterwards depends on your skin.

Time & recovery

Temporary swelling, bruising and redness can appear and mostly subside on their own within 3-5 days. Raised bumps at the injection points are also temporary.

Daily activities are possible the same day. A light schedule for the first 2-3 days is advised.

Change usually starts to be noticed 2-4 weeks after a session, and the result steadies once a series of 3-4 sessions is finished. Expect it to develop after you have returned home.

Limitations & precautions

Tell the doctor about allergies, immune-related conditions and earlier procedures. Re2O is made from human-derived tissue with the immune-triggering factors removed.

Nodules and hypersensitivity reactions have been reported in rare cases. Suitability is assessed in a consultation beforehand to lower the risk.

The pain-reduction steps lessen discomfort but do not remove it, and how much is felt differs between individuals. Results also vary from person to person.

Frequently asked questions

Can I have Re2O during a short stay in Seoul?

A Re2O session takes 30-45 minutes and daily activities can resume the same day, so one session fits a short stay. Allow for swelling, bruising or redness that mostly subsides within 3-5 days. A first course is 3-4 sessions about 1 month apart, so share your travel dates in advance.

Does the name Painless Re2O mean I will feel nothing?

No. The name Painless Re2O refers to the steps taken to reduce pain, which are numbing cream, local anaesthesia and a vibration device used together. The clinic says plainly that the injections themselves still cause some discomfort, though less than with a typical booster treatment.

How is Re2O different from Rejuran and Juvelook?

Re2O supplies dermal structural proteins directly, while Rejuran (PN) and Juvelook (PDLLA) stimulate collagen production. Re2O contains human-derived ECM, made up of 89% collagen with elastin and GAGs. Dr. Jin-Young Kim decides in the consultation which mechanism suits your skin.

Can Re2O replace filler?

No, Re2O does not provide immediate volume. When immediate volume is the priority the doctor suggests a cross-linked filler, and Re2O is recommended for those who need the dermal structure to recover.

How long does Re2O last, and when does the change appear?

Re2O lasts about 12 months according to the clinic's treatment overview. Some hydration may show right away, change is usually noticed from 2-4 weeks after a session, and the result steadies after a series of 3-4 sessions.