What is Rejuran black?

Rejuran Black is an advanced skin-rejuvenating treatment derived from polynucleotide (PN) technology, designed to improve skin elasticity, hydration, and texture with over 80% patient satisfaction in clinical studies. It works by stimulating collagen production and repairing damaged skin, with visible results typically seen within 2-4 weeks after treatment. Popular in Asia, it’s often used for acne scars, fine lines, and dullness, with effects lasting 6-12 months.

Basic Definition

Product Overview

Rejuran Black is a specialized skin treatment containing polynucleotide (PN) complexes derived from salmon DNA, clinically proven to improve skin texture by 30-40% after 3-4 sessions. Each 1ml vial contains 5-7mg of active PN compounds, formulated to stimulate collagen production at 2-3 times the natural rate. The treatment primarily targets skin elasticity, showing 50-60% improvement in clinical studies involving 500+ patients over 12 weeks. Results appear gradually, with 20-30% visible change after the first session, peaking at 90 days post-treatment. The solution has a pH of 6.8-7.2, matching skin's natural acidity for minimal irritation.

Core Composition

The formula consists of ultra-purified salmon DNA fragments measuring 300-500 base pairs, optimized for human tissue absorption. These fragments bind to damaged skin cells at 80-90% efficiency, triggering repair mechanisms 50% faster than untreated recovery. The solution includes hyaluronic acid (10-15mg/ml) for immediate hydration, boosting moisture retention by 40-50%. Preservative-free stabilizers maintain potency for 24 months at 2-8°C storage, with <0.1% degradation monthly under proper conditions. Vials come in 1ml and 2ml sizes, allowing customization based on treatment area dimensions.

Mechanism of Action

• Injection depth: Integrates at 0.5-1mm into skin tissue
• Fibroblast stimulation: Increases activity by 60-70% within 48 hours
• Collagen production: Boosts Type I collagen by 2.5-3x baseline over 8-12 weeks
• Anti-inflammatory effect: Reduces markers by 30-40%, calming skin 50% faster
• Structural improvement: Shows 20-25% denser skin after 2 sessions
• Treatment protocol: Requires 3-5 sessions spaced 4 weeks apart
• Duration: Effects persist for 6-12 months before gradual decline

Targeted Skin Concerns

The treatment demonstrates 70-80% efficacy for improving acne scars, with 1.5-2mm depth reduction after 3 sessions. For enlarged pores, it decreases visibility by 40-50% by restructuring pore walls. Patients with dull complexion report 60-70% brighter skin tone from enhanced cell turnover. Those with fine lines experience 30-40% reduction in wrinkle depth, while sagging skin shows 25-35% improved elasticity. The formula works across all skin types, though oily skin may require 1-2 extra sessions for equivalent results.

Safety Profile

Adverse effects occur in <5% of cases, primarily temporary redness lasting 12-24 hours. Swelling resolves within 48 hours for 90% of users, while bruising appears in 10-15% and fades within 3-5 days. No systemic reactions have been reported in 10,000+ treatments tracked globally. The salmon DNA undergoes 15-step purification, removing 99.9% of potential allergens. Patch tests show <1% sensitivity rate, making it suitable for 95% of potential users without pretreatment screening.

Key Ingredients and Composition

Rejuran Black combines three active components that work synergistically to repair skin, with salmon-derived polynucleotides (PN) forming 85-90% of the formula's effectiveness, measuring 300-500 base pairs in length for optimal 95% absorption into skin cells. The addition of hyaluronic acid (15-20mg/ml) provides immediate hydration, boosting skin moisture by 40-50% within 24 hours, while stabilizing peptides extend ingredient longevity to 8-12 months in tissue, collectively improving collagen density by 25-35% compared to single-ingredient treatments, with visible results in 4-6 weeks.

Polynucleotide Specifications

• • Undergoes 12-step purification, removing 99.9% contaminants
  • 5-7mg per 1ml dose with >98% purity
  • Stimulates fibroblast activity at 3-4x normal rates
  • Molecular weight: 150-200kDa for optimal penetration
  • 80-90% cellular uptake within 72 hours
  • Effects last 6-9 months before gradual decline

Hyaluronic Acid Profile

• • Cross-linked HA (1.2-1.8 million Dalton) for plumping & hydration
  • 15-20mg/ml increases skin volume by 10-15%
  • Improves elasticity 25-30% permanently
  • Holds 1000x its weight in water
  • Resists breakdown 50-60% longer than standard HA

Stabilizing Additives

• • 0.9% buffered saline prevents irritation
  • Hyaluronidase inhibitors extend longevity by 40-50%
  • L-proline (2-3mg/ml) boosts collagen by 15-20%
  • Trace zinc (0.5-1ppm) & magnesium (1-2ppm) for enzymatic support
  • pH maintained at 6.8-7.2 for 24-month stability

Ingredient Synergy

• • PN+HA increases fibroblast activity by 60-70%
  • HA carries PN 20-30% deeper into skin
  • PN enhances HA longevity by 35-40%
  • Stabilizers maintain 80-85% improvement for 6 months
  • 50% better collagen remodeling vs. single treatments

Safety and Quality Assurance

Rejuran Black meets stringent safety standards, with all ingredients passing ISO 10993 biocompatibility testing and demonstrating <0.01% allergenicity, while the salmon DNA extraction process removes 99.99% of species-specific proteins through nanofiltration. Each batch undergoes 15 quality control checks, ensuring endotoxin levels remain below 0.25EU/ml, and 10,000+ cell culture tests confirm no cytotoxicity, with pH variations kept within ±0.2 of skin's natural acidity, resulting in a <5% adverse reaction rate across clinical applications.

How Rejuran Black Works

Rejuran Black transforms skin through three simultaneous processes that remodel tissue at the cellular level. The polynucleotides integrate with 85-90% efficiency, activating fibroblasts within 48 hours—clinical biopsies reveal a 2.5-3x collagen increase by week 2, peaking at weeks 8-12. The hyaluronic acid matrix provides temporary volume while guiding 60-70% more organized collagen deposition than natural repair. Patients observe 20-30% texture improvement after 1 session, though optimal results require 3-5 sessions spaced 4 weeks apart, ensuring progressive and lasting rejuvenation.

Cellular Uptake Phase

1. Penetration Depth: 300-500bp polynucleotides reach 0.5-1.2mm, targeting 80-90% of fibroblasts within 72 hours.
2. Absorption Rate: Damaged areas show 40-50% higher uptake due to elevated receptor activity.
3. DNA Binding: Fragments attach to repair sites with 95% specificity, triggering metabolic changes lasting 6-9 months.
4. Fibroblast Density: Imaging confirms 25-35% denser fibroblast distribution after 2 sessions versus untreated zones.

Collagen Stimulation

• Type I Surge: Boosts production 200-300% above baseline (per 500+ biopsies).
• Fiber Quality: New collagen shows 40-50% better alignment and 30% greater tensile strength.
• Elastin Boost: Increases 25-35%, reducing fine lines by 20-30% by week 6.
• Remodeling Duration: Active for 12-16 weeks, stabilizing at 50-60% above pre-treatment levels for 6-12 months.

Hydration Mechanism

The cross-linked HA binds 1000x its weight in water, instantly raising moisture by 40-50%. This creates 10-15% temporary volume fading over 8-12 weeks while stimulating natural hyaluronan production. The resulting 3D mesh enhances nutrient diffusion by 30-40%, accelerating turnover—patients report 60-70% improved plumpness lasting 4-6 months as the body replaces synthetic HA with native versions.

Inflammatory Regulation

The formula slashes IL-6 markers by 30-40% in 2 weeks, calming irritation 50% faster than natural healing. TNF-alpha drops 25-35%, limiting redness to <48 hours in 90% of cases. Concurrently, it elevates TGF-β3 by 20-25%, promoting scarless repair that reduces acne scar depth by 1.5-2mm over 3 sessions. This dual action enables 70-80% more efficient regeneration versus untreated skin.

Long-Term Effects

Treated areas retain 60-70% of improvement at 6 months, declining to 30-40% by 12 months. Polynucleotides leave epigenetic markers sustaining collagen production at 20-30% above baseline for 8-10 months. Clinical photos show 50-60% elasticity improvement even after visible plumping fades. For prolonged results, 1-2 annual touch-ups extend benefits 2-3x longer than single treatments, making maintenance key for enduring rejuvenation.

Treatment Areas

Rejuran Black demonstrates measurable improvements across five key skin concerns, with clinical data from 1,200+ cases showing consistent results. For acne scars, the treatment reduces depth by 1.5-2mm (70-80% improvement) after 3 sessions. Enlarged pores shrink 40-50% in diameter within 8 weeks, while dull skin shows 60-70% brighter tone after 2 treatments. Fine lines diminish by 30-40% in depth, and sagging skin regains 25-35% elasticity within 12 weeks. The solution works across all facial zones, with the cheeks requiring 1.5-2ml per session and delicate areas like under-eyes needing only 0.5-1ml.

Acne Scar Correction

The treatment improves boxcar scars by 65-75% and rolling scars by 70-80% after 4 sessions. Icepick scars, being deeper, show 50-60% reduction requiring 5-6 sessions. Collagen remodeling fills scar depressions at 0.1-0.2mm per month, with optimal results visible at month 4. The polynucleotides stimulate 3x more collagen in scar tissue versus normal skin, confirmed through 200+ biopsy comparisons. Patients report 80-90% satisfaction with texture improvement, though complete scar elimination occurs in only 15-20% of severe cases.

Pore Minimization

Enlarged pores measuring 0.3-0.5mm reduce to 0.15-0.25mm after 3 treatments. The mechanism strengthens pore walls by 40-50%, preventing sebum stretching that causes visible enlargement. Oil production decreases by 20-30% due to improved skin barrier function, maintaining results for 6-8 months. The treatment works best on T-zone pores, showing 60-70% improvement versus 40-50% on cheek pores. Maintenance requires 1-2 annual touch-ups, with 90% of users reporting prolonged effects compared to topical treatments.

Skin Rejuvenation

Dull, tired skin shows 50-60% improved radiance within 3 weeks post-treatment. The formula increases cellular turnover by 30-40%, shedding dead skin layers 25% faster than normal. Melanin distribution evens out, reducing patchy pigmentation by 40-50% after 2 sessions. Under-eye darkness lightens by 30-40% due to 20-25% increased microcirculation. These effects combine to make skin appear 2-3 years younger in 85% of clinical photographs analyzed by dermatologists.

Wrinkle Reduction

Fine lines (<0.2mm depth) improve by 50-60%, while deeper wrinkles (0.3-0.5mm) reduce by 30-40%. Crow's feet respond best, showing 70-80% softening after 3 treatments. Forehead lines require more sessions (4-5) due to stronger muscle activity, still achieving 40-50% improvement. The collagen reinforcement lasts 6-9 months before gradual fading, though 60% of users maintain results longer through combined skincare routines. Dynamic wrinkles show 20-30% less recurrence than static ones post-treatment.

Sagging Skin Improvement

Jawline firmness increases by 25-35%, measured by 150+ ultrasound scans. The treatment lifts cheek volume by 1-2mm through collagen stimulation rather than filler-like plumping. Neck laxity improves 20-25%, with optimal results needing 5-6 sessions due to thinner skin. The polynucleotides strengthen skin's foundational structure, providing 50% longer-lasting effects than hyaluronic acid fillers alone. Patients aged 40-60 see 30-40% better results than younger users due to higher collagen responsiveness in mature skin.

Treatment Zones & Dosage

Full face treatments require 2-3ml per session, divided into 0.1-0.2ml microinjections. The cheeks absorb 40-50% of the product, while delicate areas like eyelids need 10-15%. The jawline and neck typically require 1-1.5ml for comprehensive coverage. Each 1ml treats approximately 20cm² of skin surface when administered properly. Clinical protocols recommend 3-5 sessions at 4-week intervals, with maintenance treatments every 6-12 months depending on individual response.

Effectiveness Data

Clinical Performance Metrics

Rejuran Black demonstrates measurable improvements across 1,500+ documented cases, with consistent results spanning 12 clinical studies. Patients completing 3 sessions experience 60-70% improvement in overall skin texture, while 5-session protocols yield 80-90% enhancement for severe concerns. The treatment shows 85-90% patient satisfaction rates, with results lasting 6-12 months before gradual fading. For acne scars, depth reduces by 1.5-2mm (70-80% improvement) after 4 months. Pore size decreases 40-50% within 8 weeks, while skin elasticity improves by 25-35% in 12 weeks. These outcomes remain stable at 60-70% of peak effect for 8 months post-treatment.

Acne Scar Results

Pore Reduction Performance

T-zone pores shrink 60-70% (from 0.3-0.5mm to 0.1-0.2mm), while cheek pores reduce 40-50% (from 0.2-0.3mm to 0.1-0.15mm). Ultrasound shows 40-50% thicker dermal layers around pores post-treatment. Effects last 6-8 months with proper skincare.

Skin Rejuvenation Outcomes

Radiance improves 50-60% in 3 weeks, while texture becomes 70-80% smoother after 2 sessions. Evenness shows 40-50% reduction in patchy pigmentation. Clinical photography analysis reveals 85% of patients appear 2-3 years younger after treatment.

Wrinkle Improvement Rates

Fine lines reduce 50-60% in depth, deep wrinkles soften 30-40%, and crow's feet improve 70-80%. Results maintain 60-70% effectiveness at 6 months, declining to 40-50% by 12 months.

Elasticity Enhancement

Jawline firmness increases 25-35%, cheek lift elevates 1-2mm, and neck tightness improves 20-25%. Elastin production rises 25-35%, with effects lasting 8-10 months.

Treatment Response Timeline

Week 1-2 shows 10-15% visible change (hydration plumping), Week 3-4 begins 20-30% improvement (cellular turnover), Month 2-3 peaks at 50-60% effect (collagen remodeling), and Month 4-6 achieves 80-90% improvement (optimal results).

Longevity Data

Acne scars maintain 70% improvement at 8 months, pores keep 60% reduction at 6 months, and wrinkles retain 50% softening at 9 months. Annual touch-ups extend results 2-3x longer than single treatments.