Introduction

Thin under-eye skin is a common concern for people who notice fine lines, dryness, creasing, visible texture, or a more tired-looking appearance around the eyes. Because the skin in this area is naturally delicate, normal aging and environmental exposure can make changes more noticeable than they are elsewhere on the face.

For international patients visiting Busan, Rejuran may be considered as one option for improving the quality and appearance of delicate under-eye skin. Rejuran is a polynucleotide-based injectable treatment generally focused on skin rejuvenation rather than adding significant volume or changing facial structure.

However, thin under-eye skin can have several contributing factors. A patient may actually be dealing with dehydration, pigmentation, tear-trough hollowness, dynamic wrinkles, loss of elasticity, or a combination of concerns. The right treatment therefore depends on what is causing the under-eye appearance.

This Busan treatment guide explains how Rejuran may fit into an under-eye rejuvenation plan, who may be suitable, what happens during treatment, expected downtime, alternatives, costs, and practical considerations for international visitors.

Why Does Under-Eye Skin Become Thin?

Natural Skin Structure

The skin around the eyes is naturally thinner and more delicate than many other areas of the face.

Because there is less tissue supporting this area, changes in texture and elasticity can become visible relatively quickly.

Age-Related Changes

As people age, the skin can gradually lose collagen, elasticity, and hydration.

This may contribute to:

• Fine lines
• Creasing
• Dryness
• Reduced firmness
• More visible veins
• A thinner-looking appearance

Sun Exposure

Long-term UV exposure contributes to skin aging and can affect texture and elasticity.

Consistent sun protection is an important part of maintaining under-eye skin regardless of whether cosmetic treatment is performed.

Lifestyle and Environmental Factors

Sleep patterns, dehydration, environmental exposure, and repeated eye rubbing may also affect the appearance of the eye area.

These factors do not necessarily mean a medical procedure is required.

What Is Rejuran?

A Polynucleotide-Based Injectable Treatment

Rejuran is associated with polynucleotide-based skin rejuvenation.

Unlike a traditional dermal filler, it is not primarily intended to add facial volume. Its general purpose is to support skin quality.

It may be considered for concerns such as:

• Fine lines
• Uneven texture
• Dryness
• Reduced elasticity
• Delicate-looking skin
• General signs of skin aging

The exact product and treatment protocol should be selected by a qualified medical provider.

Rejuran Is Not an Under-Eye Filler

This distinction is important for patients with thin under-eye skin.

If the main problem is a deep tear-trough depression caused by volume loss, Rejuran may not address the underlying issue.

A professional assessment can determine whether the concern is primarily skin quality or facial volume.

How May Rejuran Help Thin Under-Eye Skin?

Focus on Skin Quality

Rejuran may be considered when thin-looking under-eye skin is accompanied by fine lines, dryness, or reduced elasticity.

The aim is generally gradual improvement in skin quality rather than an immediate structural change.

A More Natural-Looking Approach

Some patients prefer treatments that focus on skin quality rather than adding noticeable volume.

Rejuran may fit this preference in selected cases.

However, results vary and should not be guaranteed.

Who May Be a Good Candidate?

Patients With Fine Lines and Delicate Skin

Rejuran may be discussed for adults who notice:

• Fine under-eye lines
• Dryness
• Mild creasing
• Reduced elasticity
• Thin-looking skin
• Early signs of aging

Patients Seeking Skin Rejuvenation

It may be appropriate for patients who want gradual skin-quality improvement rather than dramatic facial reshaping.

A consultation is still necessary to determine suitability.

Who May Need Another Treatment?

Significant Tear-Trough Hollowness

If the primary concern is a hollow under-eye contour, a provider may discuss volume-restoring options rather than relying on Rejuran alone.

Dynamic Crow's Feet

Wrinkles caused mainly by repeated muscle movement may be better suited to treatments that target muscle activity.

Pigmented Dark Circles

If darkness is primarily pigmentation, a pigment-focused skincare or laser approach may be considered.

Under-Eye Bags

Visible bags may be associated with anatomy, fat compartments, fluid retention, or aging.

Rejuran is not a universal solution for under-eye bags.

What Happens During Rejuran Treatment?

Detailed Consultation

The provider should examine the under-eye area carefully.

The consultation may evaluate:

• Skin thickness
• Fine lines
• Elasticity
• Pigmentation
• Hollowness
• Puffiness
• Facial movement
• Previous treatments

This helps distinguish skin-quality problems from structural concerns.

Medical History

Tell your provider about:

• Allergies
• Medications
• Previous injectables
• Botox
• Dermal fillers
• Laser treatments
• Skin boosters
• Previous eye-area procedures

International patients should also mention treatments received outside South Korea.

Preparation

The treatment area is cleansed and prepared.

A topical anesthetic may be used depending on the clinic's protocol and the patient's preferences.

Small Injections

Rejuran is generally administered through multiple small injections.

Because the skin around the eyes is thin, injection points can temporarily be noticeable.

Does Rejuran Hurt Around the Eyes?

Some Discomfort Is Possible

Patients may experience:

• Pinching
• Stinging
• Pressure
• Tenderness

Sensitivity differs between individuals.

Discuss available comfort measures with your provider before treatment if you are concerned about discomfort.

What Can You Expect Immediately After Treatment?

Small Bumps

Temporary bumps at injection sites may appear.

They can be particularly noticeable under the eyes because the skin is thin.

Swelling

Mild or moderate swelling can occur.

Some people may experience more visible puffiness than others.

Bruising

Small bruises are possible with injectable treatments.

International visitors should take this into account when scheduling photographs or important events.

How Much Downtime Does Rejuran Require?

Recovery Varies

Rejuran is minimally invasive compared with surgery, but it is still an injectable treatment.

Possible temporary effects include:

• Redness
• Swelling
• Small bumps
• Tenderness
• Bruising

The duration varies from person to person.

Plan Around Your Busan Trip

If you are visiting Busan for a short vacation, avoid scheduling treatment immediately before:

• Professional photographs
• Wedding events
• Business meetings
• Major sightseeing
• Important social activities

When Can You Expect Results?

Gradual Skin-Quality Changes

Rejuran is not generally considered an instant wrinkle-removal procedure.

If improvement occurs, it may become noticeable gradually.

Your provider should explain what type of change is realistic based on your skin condition.

Multiple Sessions May Be Suggested

Some treatment plans involve more than one session.

The number and timing of treatments depend on:

• Skin condition
• Treatment area
• Treatment goals
• Provider assessment

There is no single schedule suitable for every patient.

Rejuran vs Under-Eye Filler

TreatmentPrimary FocusRejuranSkin quality and rejuvenationDermal fillerVolume restorationBotoxMuscle activityLaserSelected pigmentation and skin-quality concernsRF microneedlingTexture and collagen remodeling

The appropriate option depends on the underlying problem.

Rejuran vs Botox for Thin Under-Eye Skin

Different Mechanisms

Botox reduces targeted muscle activity.

Rejuran is generally focused on skin quality.

If thin skin and fine lines are the primary concerns, Rejuran may be discussed. If dynamic movement is the main contributor, another treatment may be more appropriate.

Some patients may be considered for a combination plan, but this should be determined medically.

Rejuran vs Skin Boosters

Both Can Be Used for Skin Quality

Skin boosters and Rejuran can both be discussed for hydration and skin-quality concerns, but they are not identical treatments.

The product, ingredients, treatment goals, and injection approach can differ.

Ask the clinic exactly which product is being proposed rather than relying only on a treatment name.

Can Rejuran Be Combined With Other Treatments?

Combination Treatments Require Planning

Depending on the patient's concerns, a provider may discuss combinations such as:

• Rejuran + Botox
• Rejuran + laser
• Rejuran + skin booster
• Rejuran + other rejuvenation treatments

The under-eye area should be treated conservatively because it is delicate.

More procedures do not automatically mean better results.

Rejuran for Under-Eye Dryness

Dryness Can Make Thin Skin Look More Noticeable

When under-eye skin is dehydrated, fine lines may become more visible.

A provider may recommend improving the skincare routine before or alongside cosmetic procedures.

If dryness is the only concern, an injectable treatment may not be necessary.

Rejuran for Under-Eye Fine Lines

Fine Lines Can Have Multiple Causes

Fine lines may result from:

• Skin aging
• Dryness
• UV exposure
• Repeated facial movement
• Reduced elasticity

Identifying the dominant cause helps determine whether Rejuran is appropriate.

How Much Does Rejuran for Thin Under-Eye Skin Cost in Busan?

Cost Depends on the Treatment Plan

Prices can vary according to:

• Product type
• Amount used
• Treatment area
• Clinic
• Provider
• Number of sessions
• Combination treatments

Under-eye treatment may have different pricing from larger facial treatment areas.

Ask What Is Included

Before paying, confirm:

• Exact Rejuran product
• Quantity
• Injection area
• Consultation
• Aftercare
• Additional fees

This allows you to compare clinics more accurately.

How to Choose a Clinic in Busan

Look for Experience With the Eye Area

The under-eye region requires careful anatomical consideration.

Ask who will perform the treatment and whether they have experience with injectable procedures around delicate facial areas.

Prioritize Individual Assessment

Avoid clinics that recommend the same treatment to every patient.

Your consultation should consider your specific:

• Skin thickness
• Fine lines
• Hollowness
• Pigmentation
• Elasticity
• Medical history

Tips for Foreign Patients

Confirm Language Support

International visitors from Japan, Taiwan, China, the United States, Canada, Australia, the United Kingdom, and other countries should confirm whether the clinic offers communication support in their preferred language.

Clear communication is particularly important for medical history and aftercare.

Bring Previous Treatment Information

If you recently received:

• Botox
• Dermal fillers
• Laser treatments
• Microneedling
• Skin boosters
• Chemical peels

tell your provider.

Can You Get Rejuran During a Short Busan Stay?

Timing Matters

Rejuran may fit into a short Busan trip, but treatment should be scheduled with potential swelling or bruising in mind.

If you have only a few days available, discuss your departure date before treatment.

Avoid Treatment Immediately Before Flying

Tell the clinic exactly when you plan to leave Busan.

Your provider can determine whether the treatment timing is appropriate.

What Should You Avoid After Treatment?

Follow Your Clinic's Instructions

Depending on the treatment, you may be advised to temporarily avoid:

• Intense exercise
• Excessive heat
• Sauna
• Steam rooms
• Swimming
• Strong sun exposure
• Irritating skincare

Do not use aggressive products around the treated area unless your provider approves them.

Possible Risks and Side Effects

Common Temporary Effects

Possible effects include:

• Redness
• Swelling
• Tenderness
• Bruising
• Small injection-site bumps

These reactions vary among patients.

Why the Under-Eye Area Requires Extra Care

The area around the eyes contains delicate structures.

Injectable treatment should therefore be performed by an appropriately qualified medical professional who understands the anatomy and potential complications.

Seek medical attention if you experience unusual, severe, or worsening symptoms after treatment.

Conclusion

Rejuran for thin under-eye skin in Busan may be an option for patients who are primarily concerned with skin quality, fine lines, dryness, or reduced elasticity. Its purpose is generally skin rejuvenation rather than adding significant volume or changing the shape of the under-eye area.

It is important to distinguish thin skin from other concerns such as tear-trough hollowness, dynamic wrinkles, pigmentation, and under-eye bags. These problems can look similar but may require very different treatments.

For international visitors, Rejuran can potentially fit into a Busan cosmetic-treatment itinerary, but recovery should be planned carefully. Temporary bumps, swelling, redness, tenderness, and bruising can occur, particularly in the delicate under-eye area.

The best approach is to have a detailed consultation before treatment. A qualified provider can assess the cause of your under-eye concerns, explain whether Rejuran is suitable, discuss alternatives, and create a treatment schedule that fits your travel plans.

FAQs About Rejuran for Thin Under-Eye Skin

Can Rejuran improve thin under-eye skin?

Rejuran may be considered for skin-quality concerns such as fine lines, dryness, and reduced elasticity. Individual results vary and should not be guaranteed.

Is Rejuran the same as under-eye filler?

No. Rejuran is generally focused on skin quality, while dermal filler is primarily used to add or restore volume.

Can Rejuran treat under-eye hollowness?

Rejuran is not primarily a volume-restoring treatment. Significant hollowness may require a different approach after professional assessment.

Can Rejuran reduce under-eye fine lines?

It may support improvements in skin quality and the appearance of fine lines in selected patients, but it should not be expected to remove every wrinkle.

How long does swelling last after under-eye Rejuran?

The duration varies. Temporary swelling, bumps, redness, tenderness, and bruising can occur.

Is Rejuran suitable for first-time visitors to Busan?

It may be suitable for selected patients, but treatment should be planned around your itinerary and departure date.

Can Rejuran be combined with Botox?

Some patients may be candidates for both treatments because they address different concerns. A qualified provider should determine whether combination treatment is appropriate.

How much does Rejuran cost in Busan?

Cost varies according to the product, quantity, treatment area, provider, clinic, and number of sessions.

Can foreigners get Rejuran treatment in Busan?

International visitors can seek treatment at clinics that serve foreign patients. Confirm language support, treatment details, qualifications, pricing, and aftercare before booking.

What should I tell my doctor before under-eye Rejuran?

Tell the provider about medications, allergies, previous injections, Botox, fillers, laser treatments, skin boosters, and any recent procedures around the eyes.