Why KKEUT’s Hypertrophic Scar “Saesal” Laser (Pinhole Technique) Is Different

Scars don’t improve just because you “fire a laser.”
Our Saesal Laser is a detail-driven, scar-by-scar treatment that reflects KKEUT Clinic’s core philosophy.

1) CO₂ vs. Er:YAG — chosen per area

• Broad, firm scars: stronger stimulation with CO₂

• Thin, sensitive zones: finer control with Er:YAG
  The physician selects the platform case by case based on tissue characteristics.

2) Custom pinhole spacing & diameter

• Standard spacing is ~1–2 mm

• Adjusted to wider (≥3 mm) or denser grids as needed
  We tailor spacing, diameter, and depth to the scar’s location, shape, and thickness.

3) Depth design to the upper vs. lower dermis

• Decide superficial vs. deeper passes

• Target upper dermis only or go to the lower collagen layer when indicated
  These ranges are individually set under the physician’s judgment—this level of nuance requires real know-how.

4) Not a “machine job” — planned and performed by the physician

• Direct consult → direct procedure

• Map the exact pinhole positions and spacing per lesion

• Tune energy and pulse to the patient’s skin reactivity
  We also monitor recovery and set the next session & interval responsibly.

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What is the Hypertrophic Scar Saesal Laser (Pinhole Technique)?

The Saesal (pinhole) technique creates micro-holes at ~1–3 mm intervals within the raised scar using CO₂ or Er:YAG.
This releases overgrown collagen bundles, loosens the scar architecture, and helps the lesion settle down naturally.