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Skin analysis room at Dear Clinic with a Mark-Vu facial imaging camera used at the first consultation
Dear Clinic · Skin Boosters · Rejuran HB
Thin skin, fine crepe

Rejuran HB in Cheongdam, Gangnam, Seoul for skin that has gone thin and crepey

Rejuran HB is the hyaluronic-acid-carrying member of the polynucleotide family, and it exists for skin that is thin and dry before it is anything else — the under-eye above all. It is listed here at ₩400,000 per 2 cc unit, on the same published row as the eye line.

Polynucleotide plus HA Quoted per 2 cc unit Open 365 days
Ask Which Rejuran Line Your Skin Needs The Rejuran Treatment Page
The Short Answer

What Rejuran HB is built for and which complaint it answers

HB carries hyaluronic acid alongside the polynucleotide fraction that the whole Rejuran family is built on. That combination is aimed at skin whose main problem is thinness and dryness — the fine crinkle under a lower lid, the dull stretch across a cheek that creases when you smile and stays creased for a second too long. Where the dominant problem is repair work in a scarred or rough surface, the Healer row is the better purchase.

The distinction matters because people arrive having already decided on the dearer row for the wrong reason. A booster does not become more suitable by costing more. It becomes suitable when the deficit written on your skin matches what is inside the syringe, and that is a reading somebody takes with your face in front of them.

Rate card behaviour — what moves a total, what a series would come to — lives on the Rejuran HB rate page, and the polynucleotide mechanism in full sits on the Rejuran treatment page. Here we stay with whether thin, crepey skin is what you actually have.

The Concern

Three separate things get called crepey under-eye skin

Patients describe one symptom. A capture usually shows two or three overlapping causes, and only some of them belong to a booster at all.

CAUSE 01

A dermis that has thinned out

Skin under the eye is the thinnest on the face to begin with. As the supporting dermal layer becomes sparser, light stops bouncing off a smooth plane and starts catching in every small fold. This is the layer polynucleotide preparations are placed into.

CAUSE 02

Water that the tissue no longer holds

Thin skin also holds less water, and dehydrated skin creases earlier and recovers from creasing more slowly. Hyaluronic acid is the component that addresses this side of it, and the HB formulation is the one that brings it.

CAUSE 03

A shadow that is not texture at all

A great deal of what gets photographed as under-eye crepe is a hollow casting a shadow, or pigment sitting in the skin. Neither one improves because a booster went in, and both are visible on the capture before any product is quoted.

The three run together in most faces, in different proportions. Separating them is the value of the first appointment, because the proportion decides whether your money goes into a booster, a volume correction, a pigment programme, or two of those in a deliberate order.

Reading Before Prescribing

What the EVE Muse capture settles before a Rejuran HB unit is opened

Three-dimensional imaging under five light sources with AI analysis records the lower lid from angles a bathroom mirror never offers, including the raking light that makes fine surface folds legible
Pigment and vascular shadow separate on the capture from surface texture, which is the single most common reason a booster gets bought by somebody who needed a pigment plan
Skin thickness across the treated zone is read before any depth is chosen, because thin tissue and thicker tissue do not take the same placement
Your director palpates the area and stretches the skin gently to see whether the fold releases, since a fold that disappears under light tension behaves differently from one that does not

Your director places every injection and does the reading that decides where they go, because the depth chosen under a lower lid follows from what the fingers and the capture said ten minutes earlier. The capture is stored, so a later comparison is against your own baseline.

Abstract visual of translucent gel textures
Fine surface crepe over thin skin — the picture the HB row was formulated for.
HB Or Healer

Rejuran HB against the other injectables that get proposed for the same complaint

All three products below are carried here and all three are used every week. The table maps what each one is made of and what it is therefore able to change, so the choice follows the deficit your capture shows.
On our listWhat is in the syringeThe deficit it addressesListed rate
Rejuran HBPolynucleotide with hyaluronic acid carried alongside itThin, dry skin where the complaint is fine surface crepe and a dull, flat quality — the under-eye being the zone people come in for₩400,000 (≈ $285) per 2 cc
Rejuran HealerPolynucleotide without the hyaluronic acid componentSkin where repair of a rough, damaged or scarred surface is the priority and hydration is secondary₩300,000 (≈ $215) per 2 cc
SkinviveHyaluronic acid on its own, with no polynucleotide fractionHydration and smoothness where the skin is not looking for the regenerative side of the equation at allPublished on the Skinvive page and the booster rate list
Limits

Four things a Rejuran HB unit will not do for an under-eye

A booster works in the skin. Anything whose cause sits below the skin, or inside a pigment cell, or in a muscle, is outside its reach, and no number of units changes that. These are the four readings that get a different prescription here, and in each case we do not recommend the injection this page is about.

What the capture showsWhy HB is the wrong purchaseWhat the plan says instead
A hollow under the lidThe shadow comes from a deficit of volume across the tear trough, which a product placed in the skin does not fillA volume correction is the relevant conversation — see under-eye filler
Brown pigment in the skinMelanin is not addressed by polynucleotide or by hyaluronic acid, and treating it as texture wastes a unitA pigment programme, set out on the dark circle page and the melasma page
Lines printed by muscle movementA crease that only appears when you squint is being folded by the muscle underneath, and skin quality is not the variableA relaxant conversation — the areas are described on the wrinkle toxin page
Laxity of the whole lower lidTissue that has descended needs tightening at a depth a needle in the dermis never reachesEnergy-based options, sorted on the lifting and tightening hub

A fifth case is simply a no for now. Active inflammation, broken skin or infection in the area means the appointment is rescheduled, and an allergy history changes the plan entirely. Pregnancy and breastfeeding, blood-thinning medication or supplements, and any autoimmune condition all need raising at the consultation before anything is drawn up.

Listed Rates

What the Rejuran HB row carries and how it sits next to Healer

The HB unit is published at ₩400,000 (≈ $285) and the Healer unit at ₩300,000 (≈ $215), both quoted per 2 cc because that is the unit the family is packaged in. Our list carries HB and the eye line on one row, which means a plan aimed at the peri-orbital skin is billed at that same published figure.
Row on the published listUnitRate
Rejuran HB / Eye2 cc₩400,000 (≈ $285)
Rejuran Healer2 cc₩300,000 (≈ $215)

Two things follow from a shared row. A peri-orbital plan is still its own piece of work, with its own depth decisions and its own consent conversation, even though the listed figure is the same. And the total you approve depends on how many units your area calls for, settled after the reading and before anything is opened. Visitors and residents are quoted from the same list. Everything else we publish is on the price list, and the wider booster picture on the skin booster hub.

The Days After

What a Rejuran HB session leaves behind in the first week

Small raised papules where the product sits are the ordinary finding, and they settle as it disperses. Swelling around a treated lower lid is common and looks worse on the first morning than it does by the third. Bruising is the risk that matters most in this region, because the vessels under the eye are superficial and the skin over them shows everything; a bruise here can outlast the swelling by several days. Tenderness, brief redness and a tight feeling across the area are the rest of the ordinary list.

Beyond those sit the uncommon ones you are consented for anyway: prolonged lumpiness, an inflammatory reaction at an entry point, infection, and asymmetry when one side takes the product differently. Any injection near the orbit carries vascular risk, which is why placement is slow and done by the director who read the capture.

Keep the area clean and leave makeup off it for the rest of the day
Skip saunas, hot yoga, alcohol and hard exercise while the swelling is settling
Sleep with the head slightly raised on the first night if the lower lids have puffed
Hold off on acids and retinoids over the treated zone until the entry points have closed
Photograph the area in the same light every few days, because change in thin skin is gradual enough to be invisible day to day

Comfort measures for the appointment itself are confirmed at consultation. Results vary between individuals and are assessed against your own capture at the review; how many units a given face eventually uses, and at what spacing, is a decision your director makes with you as the skin responds.

Dear, Knowhow

How a Rejuran HB decision is reached at Dear

01 — THE WHOLE BOOSTER SHELF

HB competes with everything else we stock

Polynucleotide lines, hyaluronic acid boosters, collagen stimulators and energy platforms all sit on one list here. A product with nothing to compete against gets prescribed by default, and that is the situation we have deliberately removed.

02 — DIAGNOSIS FIRST

EVE Muse 3D + AI separates texture from shadow

Three-dimensional imaging under five light sources with AI analysis is run before the conversation about product, and it is the step that tells a thinning dermis apart from a hollow and from pigment. Where the capture says the complaint is shadow, the quote that follows is for something other than a booster.

03 — DIRECTOR-PERFORMED

The same hands read the lid and inject it

Your director places the product, at a depth decided from the reading taken minutes earlier. Under a lower lid the margin between correct and too superficial is small, and handing that over to anybody else would put the two halves of one judgement in two different pairs of hands.

In the clinic

The devices and hands behind this treatment

Rejuran polynucleotide cartons and syringes held in stock at Dear Clinic Cheongdam
The polynucleotide family as it is stocked here, with the HB row among them.
Rejuran carton in black and silver shown at an angle
Rejuran carton in black and silver shown at an angle
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

Rejuran HB for thin skin, question by question

What does Rejuran HB do that Rejuran Healer does not?
It brings hyaluronic acid into the same placement as the polynucleotide fraction. That makes it the row we reach for when the reading says the skin is thin and dry, which is the typical picture under a lower lid. Healer carries the polynucleotide without that hydration component and is the better answer where surface repair is the priority.
Is Rejuran HB the right treatment for crepey under-eye skin?
It is, on the condition that what you have is genuinely skin-quality crepe. The capture separates that from a hollow casting a shadow and from pigment sitting in the skin, and either of those two gets a different prescription here. In a lot of faces the answer is that two causes are present in different proportions, and the order they are treated in matters more than the product name.
Why do HB and the eye line share one row on your list?
Because that is how our published list carries them, and we print it as it is. What it does not mean is that a peri-orbital plan is a smaller piece of work: the depth decisions, the consent conversation and the pace of the injection near an orbit are all handled on their own terms regardless of what the figure says.
How many units of Rejuran HB will I need?
Your director tells you after the reading, and you approve the number before anything is opened. What we will not do is publish a count on a web page, because the honest input to that number is the area being treated and the state of the skin in it, neither of which we can see from here. Sessions are quoted one at a time.
How long does Rejuran HB last?
This clinic publishes no duration claim for it. What holds and for how long varies with your skin, your age and what else is happening on your plan, and your director gives you the expectation drawn from your own examination at the consultation. The capture stored from your first visit is what the later comparison is made against.
Will I have bumps afterwards, and how long do they stay?
Small raised papules where the product sits are ordinary and settle as it disperses. Around the eye, swelling and bruising are the findings that show most, because the skin there is thin and the vessels underneath are superficial. A bruise in this region can persist after the swelling has gone, so plan an important evening around that possibility.
Can Rejuran HB fix my dark circles?
Only the portion of them that is skin quality. Where the darkness is a hollow throwing a shadow, or brown pigment in the skin, a booster does not reach the cause and we do not recommend buying it for that. Which component you have is settled on the capture, and the dark circle page sets out how the three types are told apart.
Is Rejuran HB a filler?
No. A filler is placed to add volume and hold a shape; HB is placed into the skin to change its quality. The confusion is understandable because both arrive in a syringe and both contain hyaluronic acid in some form, but the amount, the crosslinking and the depth are different, and so is the thing you see afterwards.
Can I have it on the same day as my consultation?
Usually yes, once the capture has been read, the area agreed and the figure approved by you. Dear Clinic is open 365 days a year, Sundays and public holidays included, so a single trip is often enough. Where the reading says the treatment should wait, we say so and nothing is drawn up that day.
Do foreign patients pay a different rate for Rejuran HB?
No. The row on our published list is the row a Korean patient is quoted from, and payment is made in Korean won. Consultation is available in English every day we are open, and the plan, the number of units and the total are put in front of you before anything begins.
I am in Seoul for a week. Is one Rejuran HB session worth having?
It can be, with realistic framing. A single unit is a starting point and not a completed course, swelling and possible bruising sit in the first days, and skin change is gradual. If your week includes an event, put the session at the start of the stay and tell your director the date, because that changes what gets recommended.
Can Rejuran HB be combined with other treatments on the same visit?
Sometimes, and sometimes the answer is to stage them. Combining depends on what else is planned, where it sits in the tissue and how much the area has been asked to do in one day. Your director sets the sequence, and a plan that is spread over two visits is a normal recommendation rather than an upsell avoided.
Consultation

Ask whether your skin needs the HB row or another one

Send a close photograph of the area in daylight — answered in English as soon as possible.

Scientific Evidence

Peer-reviewed sources for the polynucleotide family this row belongs to

Three references cover the molecule the Rejuran line is built on: a comparison of two delivery methods for a polynucleotide preparation in skin rejuvenation, an early laboratory paper on polydeoxyribonucleotide and cell proliferation, and a recent review of established efficacy and research directions for the compound.

None of them is a study of the HB formulation as sold in Korea, none of them reports what one person's under-eye will do, and none is cited here as the source of a duration figure or a session count. They are listed so the mechanism described above can be read at its source.

  1. Hong J et al. Therapeutic Performance of Needle Injection Versus Needle‐Free Jet Injector System for Polynucleotide Filler in Skin Rejuvenation. Journal of Cosmetic Dermatology. 2024. doi:10.1111/jocd.16595
  2. Guizzardi S et al. Polydeoxyribonucleotide (PDRN) promotes human osteoblast proliferation: A new proposal for bone tissue repair. Life Sciences. 2003. doi:10.1016/s0024-3205(03)00547-2
  3. Kim J. Polydeoxyribonucleotide (PDRN) - Established Efficacy and Emerging Directions in Research and Development -. Journal of Biotechnology and Bioindustry. 2025. doi:10.37503/jbb.2025.13.14

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

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