What Is Rejuran I?

Rejuran I is a polynucleotide (PN) skin booster specifically designed for the thin skin around the eyes.

It is commonly used for:

• Dark circles
• Crow's feet
• Fine under-eye lines
• Thin under-eye skin
• Eye bags
• Crepey skin
• Skin laxity
• Dry under-eye skin
• Under-eye rejuvenation
• Overall eye-area skin quality

Unlike standard Rejuran Healer, Rejuran I has a thinner consistency that makes it more suitable for delicate periorbital skin.

How Rejuran I Works

Rejuran I contains purified polynucleotides (PN) derived from salmon DNA.

The treatment may help:

• Stimulate collagen production
• Improve skin elasticity
• Strengthen thin skin
• Improve skin hydration
• Enhance skin repair
• Improve skin texture
• Support healthier under-eye skin

Rather than filling hollows, Rejuran I focuses on improving the quality and strength of the skin itself.

What Makes Rejuran I Different?

Rejuran I is specifically formulated for the eye area.

Characteristics include:

• PN (Polynucleotide)
• Lower-viscosity formulation
• Suitable for thin skin
• Minimal risk of lumpiness
• Skin regeneration
• Improved elasticity
• Natural-looking results

Its thinner consistency allows smoother distribution beneath delicate under-eye skin.

Rejuran I for Dark Circles

Many patients seek Rejuran I for tired-looking eyes.

Potential benefits include:

• Brighter under-eye appearance
• Improved skin quality
• Healthier-looking skin
• Better skin thickness
• More refreshed appearance

Dark circles caused by pigmentation, volume loss, or prominent blood vessels may require combination treatment.

Rejuran I for Fine Lines

Rejuran I is commonly used to improve:

• Crow's feet
• Fine wrinkles
• Crepey skin
• Early aging around the eyes

Treatment helps improve skin elasticity as collagen production gradually increases.

Rejuran I for Thin Under-Eye Skin

Thin skin beneath the eyes is a common concern with aging.

Potential benefits include:

• Stronger skin
• Improved elasticity
• Better hydration
• Healthier skin barrier
• Reduced skin fragility

Rejuran I for Eye Bags

Although Rejuran I does not remove true fat prolapse, it may improve the appearance of mild under-eye bags by enhancing skin quality and elasticity.

Potential benefits include:

• Firmer under-eye skin
• Improved texture
• Better support
• More youthful appearance

Patients with significant fat herniation may benefit from additional procedures.

Benefits of Rejuran I

Potential benefits may include:

• Skin regeneration
• Improved elasticity
• Better hydration
• Fine-line reduction
• Stronger skin barrier
• Healthier under-eye skin
• Natural-looking rejuvenation
• Minimal downtime

Results vary depending on skin condition and treatment frequency.

Rejuran I vs Rejuran Healer

Rejuran I

Often used for:

• Under-eye treatment
• Crow's feet
• Thin skin
• Dark circles
• Eye-area rejuvenation

Rejuran Healer

Often used for:

• Full-face skin regeneration
• Enlarged pores
• Acne scars
• Skin barrier repair
• Overall skin rejuvenation

Patients often receive both treatments simultaneously—Rejuran Healer for the face and Rejuran I for the eye area.

Rejuran I vs Under-Eye Fillers

Rejuran I

Focuses on:

• Skin regeneration
• Improved elasticity
• Fine lines
• Thin skin
• Skin quality

Hyaluronic Acid Under-Eye Fillers

Focus on:

• Volume restoration
• Tear trough correction
• Hollow under-eyes
• Immediate improvement

Some patients benefit from combining both treatments depending on the cause of their under-eye concerns.

Combination Treatments with Rejuran I

Rejuran I may be combined with:

• Botox
• Under-eye fillers
• Rejuran Healer
• Rejuran HB
• SKINVIVE
• Pico Laser
• Laser toning
• Fractional laser
• RF Microneedling
• Ultherapy
• Medical skincare

Combination treatment plans are customized after eye-area assessment.

What Happens During Rejuran I Treatment?

Consultation

Patients typically receive:

• Eye-area assessment
• Skin quality evaluation
• Wrinkle analysis
• Medical history review
• Personalized treatment recommendations

Treatment

The procedure generally involves:

• Skin cleansing
• Topical numbing cream
• Multiple microinjections around the eyes
• Cooling care
• Post-treatment guidance

Most sessions take approximately 20–30 minutes.

Recovery After Rejuran I

Recovery is generally minimal.

Temporary effects may include:

• Mild redness
• Small injection bumps
• Swelling
• Tenderness
• Minor bruising

Most patients return to normal daily activities immediately.

The temporary papules generally settle within 24–48 hours.

Results Timeline

Early Results

Patients may notice:

• Better hydration
• Smoother skin
• Fresher appearance

Long-Term Results

With repeated treatments, patients may experience:

• Improved elasticity
• Better skin thickness
• Softer crow's feet
• Reduced fine lines
• Healthier under-eye skin

Many dermatologists recommend an initial series of 3 treatments approximately 4 weeks apart, followed by maintenance treatments every 3–6 months depending on individual skin condition.

Estimated Rejuran I Cost in Seoul

Treatment costs vary depending on:

• Treatment area
• Number of syringes
• Combination procedures
• Clinic expertise

Most clinics provide customized pricing after consultation.

Who Is a Good Candidate?

Rejuran I may be suitable for individuals who:

• Have dark circles
• Have crow's feet
• Have fine under-eye lines
• Have thin skin around the eyes
• Want healthier under-eye skin
• Prefer natural-looking rejuvenation
• Want minimal downtime

A dermatologist will determine whether Rejuran I is appropriate after evaluating your eye-area concerns.

Why Rejuran I Is Popular in Seoul

Rejuran I has become one of Korea's most popular under-eye rejuvenation treatments because it improves the quality of delicate eye-area skin without adding excessive volume.

Advantages include:

• PN skin regeneration
• Designed specifically for thin skin
• Improved elasticity
• Better skin hydration
• Natural-looking results
• Minimal downtime
• Combination with other eye treatments
• International patient support

Many international patients visit Hongdae and Seoul for Rejuran I as part of personalized under-eye rejuvenation programs focused on healthier, smoother, and younger-looking eyes.

Frequently Asked Questions

What is Rejuran I?

Rejuran I is a PN (polynucleotide) skin regeneration injectable specifically designed for the delicate skin around the eyes to improve fine lines, elasticity, and overall skin quality.

How is Rejuran I different from Rejuran Healer?

Rejuran I uses a lower-viscosity formulation specifically developed for the thin skin around the eyes, while Rejuran Healer is intended for overall facial skin regeneration.

Does Rejuran I help dark circles?

Rejuran I may improve dark circles associated with thin, aging skin by strengthening the skin and improving elasticity. Dark circles caused by pigmentation or volume loss may require additional treatments.

How many Rejuran I sessions are recommended?

Many patients undergo 3 initial treatments spaced approximately 4 weeks apart, followed by maintenance sessions every 3–6 months depending on their skin condition.

Is there downtime after Rejuran I?

Downtime is minimal. Mild redness, swelling, bruising, and temporary injection bumps generally resolve within one to two days.

Can Rejuran I be combined with under-eye fillers?

Yes. Rejuran I is commonly combined with under-eye fillers, Botox, laser treatments, and other skin boosters for comprehensive eye rejuvenation.

Is Rejuran I available for international patients in Seoul?

Yes. Many dermatology clinics in Hongdae and Seoul provide customized Rejuran I treatment programs for international patients.