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Dear Clinic · Procedure Information · Skin Boosters
Calcium Hydroxylapatite Collagen Stimulator

Radiesse in Cheongdam

A CaHA injectable from Merz. Placed neat it gives firm structural support; thinned with saline or lidocaine it spreads across a wider field, where the target is the firmness of the skin itself.

CaHA collagen stimulator ₩1,200,000 (≈ $855) / vial Open 365 days
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About

What is Radiesse?

Radiesse is an injectable made by Merz whose active component is CaHA — calcium hydroxylapatite — a mineral-based material suspended in a carrier gel. It is used two quite different ways: at full strength it supports and defines an area, and in diluted or hyperdiluted form it is spread through a wider plane to work on the firmness of the skin across that whole field. Both routes rely on the same idea — the material acts as a scaffold your own tissue responds to.

Because the result comes from your tissue's response and not from the gel itself, comparing Radiesse with a soft hyaluronic-acid filler misleads on almost every point. An HA gel is judged on how it sits and how it moves the moment it goes in. A CaHA product is judged on what your skin does around it over the following weeks, which changes how much is placed, how thinly it is spread, which plane it goes into and how far apart sessions sit.

The technique has its own published literature. A 2018 global consensus paper set out injection guidance specifically for diluted and hyperdiluted calcium hydroxylapatite used for skin tightening, and an earlier 2010 study reported long-term safety and efficacy results for CaHA in nasolabial folds. Both are listed in full at the foot of this page, and both inform how your director plans dilution and depth here in Cheongdam.

One practical consequence is worth saying out loud before you book anything. A stimulator cannot be dissolved away the way a hyaluronic-acid gel can, so the discipline has to happen at the planning stage; there is no enzyme that undoes it afterwards. That is why the consultation here spends most of its time on the map — which plane, how thinly, how much, and whether the answer this month is a smaller amount than you came in expecting.

Radiesse 1.5 mL carton beside its pre-filled syringe on a transparent background
Every Radiesse plan begins with the EVE Muse 3D scan — the dilution follows the diagnosis, never the other way round.
Treatment Areas

Where Radiesse is used

Four zones our directors most often plan for, each asking for its own dilution.

01

Lower face & jaw border

Where the outline has softened and the skin along the jaw feels loose without the weight of a true jowl. Firm support placed deep, thinned support placed shallow — the mix comes off your scan.

02

Nasolabial folds, the oldest CaHA indication

This is the fold with the longest published record for calcium hydroxylapatite, including the 2010 long-term safety and efficacy study cited at the foot of this page. Here the material is usually placed at full strength and conservatively.

03

Neck & upper chest

Crepey, thin-looking skin that no lifting device flatters. This is classic hyperdiluted territory: wide, shallow and even, with no attempt at contour anywhere in the plan.

04

Hands, arms & body skin

Skin laxity away from the face is a common request from visiting patients. It is planned as a separate map with its own dilution, and quoted per vial before anything is opened.

Suitability for any of these zones is confirmed in person. If your diagnosis shows the concern is volume loss or true laxity instead of skin quality, we do not recommend CaHA and you are prescribed the material that does answer it.

Backlit arch mirror with the DEAR mark above a recovery bed at Dear Clinic Cheongdam
Backlit arch mirror with the DEAR mark above a recovery bed at Dear Clinic Cheongdam
Curved shelving niche with a round bouclé ottoman at Dear Clinic Cheongdam
Curved shelving niche with a round bouclé ottoman at Dear Clinic Cheongdam
How It Is Prescribed

Neat, diluted, hyperdiluted — the dilution is the prescription

The single most important decision in a Radiesse plan is made before the needle is loaded — how much the vial is thinned.

ROUTE 01

Neat, for structure

Used undiluted, Radiesse behaves as a firm support material and is placed deep, in small controlled amounts, where an outline needs backing. This is the most conservative route we run: less is placed than most patients expect, because a stimulator keeps working after the appointment ends.

ROUTE 02

Diluted, for firmness

Thinned with saline or lidocaine so it can be distributed evenly across a field instead of concentrated at a point, this is the version described in the 2018 consensus guidance on diluted CaHA for skin tightening. The aim is a firmer-feeling skin surface.

ROUTE 03

Hyperdiluted, for wide fields

The thinnest preparation, reserved for broad areas such as the neck, chest or body where the skin is fine and the target is uniformity. It demands even more planning, because what determines whether the result reads naturally is the evenness of the coverage across the whole field.

Which route you are prescribed is not a preference or a package. It follows the EVE Muse reading of your skin thickness and elasticity, the plane the concern actually sits in, and how your face moves. Two patients who ask for the same thing frequently leave with two different dilutions — and occasionally with a recommendation for something else entirely.

It is also why the unit on the card is the vial and not the area. A thinned preparation spread across a neck and a small amount of neat product along a jaw border can cost the same, because what you are paying for is the material itself. That keeps the pricing legible: you can see exactly what you are buying, and you can see when the recommendation is to buy less of it.

Treatment corridor with a mirrored end wall reflecting the DEAR clinic logo
Treatment corridor with a mirrored end wall reflecting the DEAR clinic logo
What To Expect

How a Radiesse plan unfolds

A stimulator is a slow product. Knowing that in advance is the difference between a patient who is pleased and one who is impatient.

Diagnosis before dilution. The EVE Muse 3D scan and five-light-source analysis map thickness, elasticity and surface quality. Your director decides from that reading whether Radiesse is the right material at all.
The appointment itself. Topical numbing first, then injection by the director along the planned map. Most visits are comfortable and short enough to fit either side of a flight.
The first days. Injection-point redness, small bumps or mild swelling are ordinary and settle. You are told exactly what is expected for your dilution before you leave.
The gradual part. The reason to choose a collagen stimulator is what happens after the swelling has gone, as your own tissue responds. It is progressive by design, and it is not a same-week result.
Review, then decide. We look at the area again before proposing anything further. If one vial did what your diagnosis needed, that is where the plan stops.

Timelines and duration differ between individuals, dilutions and treated areas, so yours is quoted in person after your skin has been examined; an average printed on a web page would describe almost nobody. What we can commit to is that the plan is written before treatment and that nothing is added mid-session without asking you first.

Two bouclé armchairs and a stone stool in the waiting area at Dear Clinic Cheongdam
Two bouclé armchairs and a stone stool in the waiting area at Dear Clinic Cheongdam
EVE Muse AI analysis screen showing multi-angle facial capture
EVE Muse AI analysis screen showing multi-angle facial capture
Dear, Knowhow

Why a CaHA plan is written differently here

01 — THREE MATERIALS, THREE ANSWERS

CaHA, PLLA and PDRN on the same shelf

Radiesse is CaHA. Sculptra next to it is PLLA, Rejuran is PDRN, and the HA filler range and the lifting line sit in the same building. Nothing has to be stretched to cover a job that belongs to the bottle beside it.

02 — THE SCAN SETS THE DILUTION

Skin thickness decides how far the vial is thinned

The EVE Muse 3D capture and its five-light-source analysis read thickness, elasticity and surface quality before any dilution is chosen, because a thin neck and a thick male jawline take the same product to very different concentrations. Coverage, plane and dilution are then drawn onto one map, area by area, and the map is what your director works from in the room.

03 — DIRECTOR-PERFORMED

An uneven stimulator cannot be dissolved out

Every Radiesse injection here is performed by our director, and the doctor who read your scan is the one holding the syringe. That is not a courtesy; with a material no enzyme can remove, it is the only safeguard the plan has.

Three Radiesse cartons and a syringe arranged on blue and clear discs, seen from above
Radiesse, the Merz CaHA suspension — dilution, areas and vial count are agreed before a carton is opened.
Dear Clinic lounge in Cheongdam, Gangnam, where international patients wait before treatment
Cheongdam, Gangnam — open seven days a week, including Sundays and public holidays.
In the clinic

The devices and hands behind this treatment

Entrance of Dear Clinic in Cheongdam, Gangnam, Seoul, with the clinic hours shown in English on the glass door
Entrance of Dear Clinic in Cheongdam, Gangnam, Seoul, with the clinic hours shown in English on the glass door
Pricing

How much does Radiesse
cost in Seoul?

At Dear Clinic in Cheongdam, Radiesse is ₩1,200,000 (≈ $855) per vial — one published rate, identical for Korean residents and international visitors. Pricing is by vial, so a broad hyperdiluted field and a small structural correction are quoted on the same basis. How many vials your plan needs is confirmed at diagnosis and approved by you before anything is opened.
ItemWhat it coversPrice
Radiesse, 1 vialThe unit everything is quoted in — neat, diluted or hyperdiluted, as prescribed₩1,200,000 (≈ $855)
Every planEVE 3D + AI diagnosis · director consultation · aftercare guidanceincluded

Published rate as of September 2026, shown in KRW with an approximate USD conversion for reference; KRW is what you pay. There is no visitor surcharge, no consultation fee added afterwards, and no product opened without your agreement. If your diagnosis calls for a different booster or for a lifting protocol instead, that is what you are quoted for.

Before The Vial Is Opened

What is asked before a Radiesse vial is prepared

Three readings have to be separated first: skin quality, volume, and descent. They point to three different materials, and only the first points to a stimulator. Skipping that question is how a vial ends up in the wrong plane, and no amount of careful injecting rescues it afterwards.
The layer the problem lives in. A concern sitting in the skin surface is treated in a different plane from one sitting under it — and treating the wrong plane wastes the vial regardless of how well it is injected.
Previous work in the same area. Earlier injectable treatment on the same zone changes both the dilution and the amount. If we do not know about it, we cannot plan around it.
Whether the timeline suits your life. A stimulator asks for patience. If you fly home in four days for an event, a gradual product is the wrong prescription that week, and we decline the booking and offer you a date that works.

Dear carries the whole shelf — boosters, the hyaluronic-acid filler range, thread lifting and every energy platform in the lifting line. Because no product on it has to be moved this month, the answer to those three questions is allowed to be a smaller plan than the one you booked, or a different one entirely.

Caution

The first week after a CaHA injection

Redness, small injection bumps or mild swelling at the points can appear and usually settle within a day or two.
Keep cleansing and make-up gentle for the first day or two, and avoid rubbing or pressing the treated area.
Skip scrubs, exfoliation and peeling treatments for about a week while the skin settles.
Avoid alcohol, smoking and saunas for several days — all raise the risk of inflammation.
If any swelling, colour change or discomfort persists or worsens, contact us straight away; aftercare follow-up is part of the treatment.

Tell your director about any medication, previous injectable treatment in the same area, or planned dental and skin procedures. Each of those changes how a stimulator is planned, and dental work in particular is worth flagging, since it puts pressure and injections into a lower face that has just been treated.

Medical Team

Five doctors, one standard

Director-performed treatment is a Dear promise — your procedure is planned and performed by the doctors below.

Dr. Jemin Kim — Medical Director and Founder, Dear Clinic
Dr. Jemin Kim
Yonsei University College of Medicine
Medical Director · Founder
Dr. Sanghyun Lee — Director, Dear Clinic
Dr. Sanghyun Lee
Seoul National University College of Medicine
Director
Board-certified · Family Medicine
Dr. Seonhaeng Lee — Director of Aesthetic Medicine, Dear Clinic
Dr. Seonhaeng Lee
Chosun University College of Medicine · Residency, Samsung Medical Center
Director, Aesthetic Medicine
Dr. Daeun Jung — Director, Dear Clinic
Dr. Daeun Jung
Ajou University College of Medicine
Director
Board-certified · Family Medicine
Dr. Woojae Jung — Director of Aesthetic Medicine, Dear Clinic
Dr. Woojae Jung
Seoul National University — B.S. in Medicine
Director, Aesthetic Medicine
Patient Reviews

What our patients say

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FAQ

Radiesse, answered

Is Radiesse worth it?
It is worth it when your concern is skin firmness or a softened outline and you can wait for the result to build. It is poor value if what you want is volume you can see the same afternoon, or if your diagnosis reads descent that a lifting protocol addresses better. Boosters, fillers and lifting devices are all in this building, so the scan settles it, and a no is one of the available answers.
Is Radiesse a filler or a collagen stimulator?
Both descriptions get used, which is where the confusion starts. Its active material is CaHA — calcium hydroxylapatite — and what makes it useful is the response your own tissue builds around it, so at Dear it is planned as a stimulator. That framing changes two practical things: it is placed more conservatively than a hyaluronic-acid gel, and it is judged at review weeks afterwards.
What is hyperdiluted Radiesse, and do I need it?
Hyperdilution means the vial is thinned considerably so it can be spread evenly through a wide, shallow field instead of concentrated at one point. It suits the neck, chest or body, where the skin is fine and uniformity is the whole objective, and it is the technique covered by the 2018 global consensus guidance cited at the foot of this page. Whether it suits you depends on your skin thickness, which your EVE Muse scan reads directly; male skin is generally thicker and the same area is usually planned at a different concentration.
How much does Radiesse cost in Seoul?
At Dear Clinic it is ₩1,200,000 (≈ $855) per vial, published openly and charged identically to residents and international visitors. Because the price is per vial, the same rate covers a small structural correction or a diluted field. Your director confirms the number of vials at diagnosis, and you approve the total before treatment begins.
How long do the results last?
Duration depends on the individual, the dilution used, the area treated and ordinary factors such as age and lifestyle, so your expected range is discussed in person once your skin has been examined. What is consistent is the shape of the change: it arrives gradually and it leaves gradually, with no cliff at the end. So the time to come back is when you notice the area softening again, which is why we review before booking anything further.
Does it hurt?
You will feel the injection points, and diluted work over a wide field involves more of them. Topical numbing is applied first, and dilution with lidocaine is a standard part of many preparations, which most patients find makes the session very manageable. Tell your director during treatment if anything is uncomfortable — the pace is adjustable.
Is there downtime?
Little for most patients. Injection redness and small bumps are common on the day and generally settle within a day or two, with mild swelling possible over wider fields. Plan a quiet evening; a week off is not needed. Keep saunas, alcohol and vigorous exercise out of the first few days.
Can Radiesse be combined with other treatments?
Frequently, and the sequence matters more than the combination itself. A stimulator handling skin firmness and a hyaluronic-acid filler restoring volume answer different problems, and lifting devices address a third. Your director stages them so the skin is not over-treated at once, and will say plainly when the better plan is to do less this visit and reassess at review.
Radiesse or a hyaluronic-acid filler — which should I choose?
Start from the problem. Lost volume that you want restored predictably points to an HA gel, which also has the practical advantage of being dissolvable if the result is not what you wanted. Thin, slack-reading skin that needs firmness points toward CaHA. Where a face needs both, they are planned in sequence across separate appointments so that each one can be judged on its own.
Can it be used on the neck, chest or hands?
Yes — those wide, fine-skinned areas are where diluted and hyperdiluted preparations are most often planned, and they are quoted per vial exactly as facial work is. The objective is even coverage across the whole field, so the map is drawn and confirmed with you before the vial is prepared. Bring the area you are actually bothered by to the consultation, uncovered if you can: hands and chest read very differently in clinic light than in a photograph on your phone.
Can I have it on the same day as my consultation?
Usually yes. The scan and the director's consultation happen in the same visit, and if suitability is confirmed the vial is prepared straight afterwards. One thing to weigh before you book it that way: a stimulator shows nothing on the day, so a same-day appointment buys you the treatment and not the result. We are open 365 days a year, Sundays and public holidays included.
Is the price the same for international visitors, and how do I book?
The same published rate applies to everyone; KRW is what you pay and the USD figure is a reference conversion. Send the consultation form below with your travel dates and we reply in English within one business day, holding your slot without a deposit. Tell us your arrival date and we will plan the visit around it.
Consultation

Ask about Radiesse

Your questions, answered in English within one business day.

Scientific Evidence

Science behind calcium hydroxylapatite — peer-reviewed references

Radiesse planning at Dear Clinic draws on published work covering both of the ways CaHA is used: the consensus guidance on diluted and hyperdiluted preparations for skin tightening, and the longer-running clinical record of calcium hydroxylapatite injected for nasolabial folds. The references below are given as titles, journals and years of publication with verifiable DOIs — they describe the technique, and any outcome for your skin is assessed at your own diagnosis.

  1. Goldie K, et al. Global Consensus Guidelines for the Injection of Diluted and Hyperdiluted Calcium Hydroxylapatite for Skin Tightening. Dermatologic Surgery. 2018. doi:10.1097/dss.0000000000001685
  2. Bass L, et al. Calcium Hydroxylapatite (Radiesse) for Treatment of Nasolabial Folds: Long-Term Safety and Efficacy Results. Aesthetic Surgery Journal. 2010. doi:10.1177/1090820x10366549

References are provided for information — outcomes vary by individual and are assessed at your diagnosis.

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