Acne scars are the hardest problem in cosmetic dermatology to fix honestly. Most products that claim to eliminate them don't. Most procedures that claim to remove them actually improve them by 30–60%, not 100%. And most protocols that promise results in weeks are selling you cosmetic concealment rather than structural change.
This protocol is the opposite of that. It takes 6 months. It combines topical skincare with coordinated professional treatments. It improves texture by 40–70% in most cases. It will not give you perfect skin. It will give you noticeably better skin — and the improvements compound for another 6–12 months after the active protocol ends.
This is the approach Korean dermatologists use with their own patients who have scarring from teenage and twenty-something acne. It's not glamorous. It works.
Before You Start: Identify Your Scar Types
Acne scars come in categories. Different scars respond to different treatments. Matching the protocol to your scar type is the most important decision you'll make.
Rolling scars: Wide, shallow depressions with soft edges. Look like gentle undulations across the skin. The most responsive to topical and combination treatment.
Boxcar scars: Wider, shallow or medium-depth scars with sharp vertical edges. Moderately responsive.
Ice pick scars: Deep, narrow, V-shaped scars that look like pinpricks. The hardest to treat. Typically require TCA CROSS or punch excision.
Hypertrophic/keloid scars: Raised scars. Require different treatment entirely (steroid injections, silicone patches, laser). Not covered by this protocol.
Post-inflammatory erythema (PIE): Red marks, not texture. Not true scarring — technically pigmentation. Resolves over 6–18 months with sunscreen and gentle actives.
Post-inflammatory hyperpigmentation (PIH): Dark brown spots where acne has healed. Not true scarring either. Responsive to vitamin C, niacinamide, tranexamic acid.
This protocol is optimized for rolling scars, boxcar scars, and accompanying PIE/PIH. It can be combined with specific treatments for ice pick scars but won't eliminate them alone.
Who This Protocol Is For
- People with moderate acne scarring (rolling or boxcar scars) that has persisted 6+ months post-acne
- People whose active acne is under control (no major breakouts for 3+ months)
- People willing to commit 6 months to a consistent regimen
- People willing to consider 1–2 professional treatments during the protocol
This protocol is not for you if:
- You have active cystic acne (treat the acne first, then scars)
- You want quick results (this takes months, not weeks)
- You have only ice pick scars (you need TCA CROSS or punch excision, which this protocol doesn't cover)
- You have keloid or hypertrophic scarring (different treatment path)
The Protocol Overview
The 6-month protocol has three phases:
Month 1–2: Barrier Preparation and Cellular Prep. Rebuild barrier, reduce inflammation, introduce PDRN and peptides.
Month 3–4: Aggressive Correction. Add professional treatments (Rejuran, microneedling, or laser), maintain supportive topicals.
Month 5–6: Consolidation and Maintenance. Continue cellular support to lock in improvements, reintroduce retinoids for ongoing texture refinement.
Month 1–2: Preparation
Acne-scarred skin has often been damaged by years of aggressive treatment — benzoyl peroxide, salicylic acid, prescription retinoids, sometimes isotretinoin. Before we can build, we need to stabilize. Two months of consistent barrier work pays for itself in everything that follows.
Morning routine
- Gentle cleanser (Cerave Hydrating, Round Lab Soybean)
- Alcohol-free hydrating toner
- Niacinamide 5–10% serum (addresses PIH and supports barrier)
- Ceramide barrier cream
- Mineral SPF 50+ (sun exposure darkens PIH permanently)
Evening routine (alternating)
PDRN nights (4x per week):
- Double cleanse
- Hydrating toner
- Topical PDRN (VT Reedle Shot 100 or 300, or similar)
- Peptide serum
- Ceramide cream
Centella nights (3x per week):
- Double cleanse
- Hydrating toner
- Centella ampoule (Skin1004 or Purito)
- Ceramide cream
What to avoid during Phase 1: Retinoids, AHAs, BHAs, benzoyl peroxide, strong vitamin C. These can wait.
Book your first professional consultation now to schedule treatments for Phase 2. Korean clinics often book 6–8 weeks out.
Month 3–4: Active Correction
With the barrier stabilized, Phase 2 introduces the heavy lifting: professional treatments combined with supportive topical PDRN and peptide therapy.
Professional treatment options
Best combination for rolling scars:
- Rejuran Healer: 3-session series, 4 weeks apart (during weeks 9, 13, 17 of protocol)
- RF Microneedling (Morpheus8, Secret RF) — single session around week 11
- Mild fractional laser — single session at week 15 (optional)
Best combination for boxcar scars:
- Fractional CO2 laser: 1–2 sessions, 8 weeks apart
- Rejuran HB between laser sessions for barrier and cellular support
- Consider subcision for deeper boxcar scars (done by dermatologist)
Budget-conscious alternative:
- Professional microneedling (in-office, 1.5–2mm depth) — 3 sessions, 4 weeks apart
- Followed by topical PDRN protocol
For cost breakdowns on these treatments in Seoul vs. the US, see our Rejuran cost comparison and Seoul skincare trip cost guide.
Topical routine during Phase 2
The topical routine during Phase 2 supports the professional treatments, particularly in the weeks between procedures. Follow the Post-Treatment Recovery Protocol for each treatment, then return to this routine.
Morning
- Gentle cleanser
- Hydrating toner
- Vitamin C serum (L-ascorbic acid 10–15%) — 3x per week
- Niacinamide on alternate days
- Peptide cream
- Ceramide cream
- Mineral SPF 50+
Evening
PDRN nights (nightly, except on professional treatment days):
- Double cleanse
- Hydrating toner
- Topical PDRN (move to Reedle Shot 300 if tolerating 100 well)
- Peptide serum with growth factors
- Centella ampoule
- Ceramide barrier cream
Month 5–6: Consolidation
Phase 3 locks in the improvements. No new professional treatments. Focus on supporting the collagen remodeling that professional treatments initiated, and gradually reintroducing retinoids to continue texture refinement long-term.
Morning
- Gentle cleanser
- Hydrating toner
- Vitamin C serum — 4x per week
- Niacinamide on alternate days
- Peptide cream
- Ceramide cream
- Mineral SPF 50+
Evening (alternating)
Retinoid nights (3x per week):
- Double cleanse
- Hydrating toner
- Retinol 0.3–0.5% (start low; build up over Phase 3)
- Peptide cream
- Ceramide barrier cream
PDRN nights (3x per week):
- Double cleanse
- Hydrating toner
- Topical PDRN
- Peptide serum
- Ceramide cream
Rest night (1x per week):
- Cleanse
- Ceramide cream only
After Month 6: Ongoing Maintenance
Scar improvement continues after the active protocol ends. Collagen remodeling from Rejuran, laser, and microneedling peaks at 3–6 months post-treatment and continues for up to 12 months. Your job after Month 6 is to not reverse what you've built.
- Continue daily sunscreen indefinitely. UV exposure causes collagen breakdown and worsens PIH.
- Continue PDRN 3–4x per week as long-term cellular support.
- Continue retinoids 3–4 nights per week for ongoing texture refinement.
- Consider annual Rejuran Healer maintenance (single session, or 2-session mini-course).
- If active acne returns, treat it aggressively to prevent new scarring.
- Consider a second round of professional treatments at month 12 if further improvement is desired — skin has different tolerance after the first round.
Realistic Expectations
Honest outcomes from this protocol:
- Rolling scars: 50–75% improvement in depth and visibility over 12 months
- Boxcar scars: 40–60% improvement over 12 months
- Ice pick scars: 20–30% improvement with this protocol alone; 60–80% if combined with TCA CROSS or punch excision
- PIH (dark spots): 70–90% improvement in 6 months
- PIE (red marks): 60–80% improvement in 6 months
- Overall skin texture: Significantly improved — smoother, more luminous, better tone
These numbers assume consistent protocol adherence, appropriate professional treatments for your specific scar type, and no new acne during the protocol period. Results vary based on skin tone (darker skin heals differently), age (younger skin responds faster), and scar age (newer scars respond better than 10-year-old scars).
Common Mistakes
1. Starting before acne is controlled. Treating scars on actively breaking-out skin is pouring water into a leaking bucket. Get acne under control first, even if it takes 6 more months.
2. Using too many products at once. Acne-scarred skin is often over-treated. Simplicity wins.
3. Skipping professional treatments. Topical-only scar protocols plateau at 20–30% improvement. Professional treatments are where the real change comes from.
4. Inconsistent sunscreen. Each UV exposure darkens PIH and breaks down the collagen you're trying to rebuild. Sunscreen is non-negotiable.
5. Comparing to filtered photos. Most "after" photos of acne scars online are photoshopped, filtered, or shot in flattering light. Realistic 50–70% improvement looks different from the miracle transformations you see on social media.
6. Giving up at month 3. Results plateau visually between weeks 8–12 before the professional treatments' collagen remodeling kicks in. Don't stop. The improvement between months 4–6 is typically the most dramatic.
Finding the Right Clinic
Acne scar treatment requires a dermatologist who specializes in scarring, not a general aesthetic clinic. In Seoul, look for clinics that:
- Have a dedicated "acne scar program" on their menu
- Use multiple modalities (not just one laser, not just Rejuran)
- Show before/after galleries specifically of acne scar patients
- Have board-certified dermatologists, not general physicians
- Offer combination treatment sessions (subcision + filler + PDRN in one visit, for example)
For detailed guidance on clinic selection, see how we evaluate Seoul clinics and factory clinics vs. specialist clinics.
Related Reading
- Korean Treatments for Acne Scars: Complete Guide
- The PDRN Protocol
- Post-Treatment Recovery Protocol
- Rejuran Healer in Korea
- Rejuran vs. Juvelook
The products in this protocol, coming to the US. Topical PDRN, growth-factor peptide creams, and ceramide barrier formulas sourced from Seoul's dermatology district — the clinical-grade topicals used alongside professional scar treatments. Get early access →