TCA CROSS for Acne Scars in Seoul, Korea
TCA CROSS for Acne Scars in Seoul, Korea
TCA CROSS is one of the most effective targeted treatments for deep, stubborn acne scars—especially ice-pick and narrow boxcar scars. In Seoul, many dermatology clinics use this high-precision technique to remodel collagen, reduce scar depth, and improve overall skin texture with minimal downtime.
What Is TCA CROSS?
TCA CROSS (Chemical Reconstruction of Skin Scars) is a procedure where high-concentration TCA (trichloroacetic acid) is applied directly into the base of individual acne scars using a fine applicator.
This triggers controlled collagen remodeling from within, helping depressed scars gradually rise and appear less noticeable.
Best For These Scar Types
TCA CROSS is particularly effective for:
- Ice-pick scars
- Narrow boxcar scars
- Deep atrophic scars
- Pitted, small, vertical scars
For rolling or wide boxcar scars, combination treatments (subcision, laser, RF microneedling) may be recommended alongside CROSS.
Benefits of TCA CROSS
- Significant improvement in deep, narrow scars
- Targets only scarred areas—protects surrounding skin
- Minimal downtime compared to full-face resurfacing
- Stimulates collagen naturally over weeks
- Can be safely combined with other scar treatments
- Cost-effective compared to laser-only programs
How the Procedure Works
- Cleansing & Prep: Skin is cleaned and sometimes numbed.
- Precise TCA Application: A tiny amount of high-strength TCA is placed into the scar base using a pointed tool.
- Frosting Reaction: The area turns white (“frosting”), indicating collagen stimulation has begun.
- Healing Phase: Scab formation occurs within a few days, followed by peeling and gradual remodeling.
- Collagen Regeneration: Scar depth steadily improves over the next 4–8 weeks.
Downtime & Recovery
- White frosting lasts: minutes
- Redness or darkening: 2–3 days
- Small scabs: 3–7 days
- Peeling: up to 1 week
- Full collagen remodeling: 1–2 months
Makeup is usually allowed after scabs fall off naturally.
How Many Sessions Are Needed?
Most patients require:
- 2–4 sessions for moderate scars
- 4–6 sessions for very deep ice-pick scars
Sessions are typically spaced 4–6 weeks apart.
TCA CROSS vs Laser Resurfacing
FeatureTCA CROSSLaser ResurfacingTargetIndividual deep scarsWhole-face textureBest ForIce-pick, pitted scarsRolling, boxcar, uneven textureDowntimeMild, spot-specificModerate (redness/peeling)CostLowerHigherCombinationOften combinedOften complementary
Most Seoul clinics combine CROSS with fractional laser or RF microneedling for maximum improvement.
Potential Side Effects
While safe when applied by trained professionals, TCA CROSS can cause:
- Temporary redness or swelling
- Scabbing for several days
- Mild post-inflammatory hyperpigmentation (more common in darker skin tones)
- Very rare risk of over-treating the area
Strict sun protection helps minimize pigmentation.
Is TCA CROSS Safe for Melanin-Rich Skin?
Yes, when:
- Lower or controlled concentrations are used
- Intervals between sessions allow complete healing
- Sun protection (SPF 50+) is followed
- Procedures are combined with pigment-safe options like gentle laser toning
Darker skin may benefit from pre-treatment brightening to reduce PIH risk.
Cost of TCA CROSS in Seoul
Pricing varies depending on the number of scars, clinic location, and whether combination treatments are added.
Typical cost range:
- ₩80,000 – ₩200,000 per session
- Packages may offer 3–5 session discounts
- Add-on laser or microneedling: additional fee per session
Aftercare Guidelines
- Do not pick at scabs
- Avoid sweating, saunas, and hot baths for 48–72 hours
- Use gentle cleanser + soothing moisturizer
- Strict daily SPF 50+
- Avoid strong acids and retinoids for 5–7 days
- Stick to a pigment-safe routine to prevent PIH
Expected Results
- Noticeable improvement after 1–2 sessions
- Best results after multiple treatments
- Scars become shallower, smoother, and less visible
- Texture continues to improve as collagen regenerates for months