Why KKEUT Clinic’s Er:YAG Fractional Is Different

Er:YAG instead of CO₂

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• CO₂ penetrates deeply but carries more thermal injury and a higher PIH risk.
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• Er:YAG (2940 nm) precisely reaches the epidermis–dermis junction with less collateral heat, offering a safer fractional resurfacing profile while still delivering meaningful remodeling.
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Individually tuned parameters

We tailor depth and energy to the person—not the machine preset.

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• Thin skin: layered low-energy overlaps
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• Thicker skin: higher energy in fewer passes
• This fine control helps maximize results while keeping treatment comfortable and safe.
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Overlap technique for problem zones

For fine lines, scars, and enlarged pores, we strategically overlap passes to concentrate stimulus exactly where needed—without over-treating adjacent skin.

Yes, we treat hands, neck, and more

Areas like the backs of the hands and the neck can be treated using area-specific settings that respect slower healing and lower sebaceous density. It’s technically demanding—we do it routinely.

“Skin-Booster Delivery” to double the payoff

Immediately after fractional channels open, we apply skin boosters so actives can reach the upper dermis:

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• PDRN and Juvelook (PDLLA + HA, small-particle boosters)
• Paired with customized overlap and depth, this enhances remodeling for pores, fine lines, and acne scarring.
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What is “fractional”?

“Fractional” means we treat microscopic columns at spaced intervals rather than the entire surface. These columns trigger self-repair and collagen remodeling, enabling faster recovery while improving overall texture and tone.

Ablative vs. non-ablative fractional

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• Ablative fractional: precisely removes micro-columns down to the DEJ for stronger results on texture, lines, pigment—with some downtime.
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• Non-ablative fractional: heats the dermis through intact epidermis—quicker recovery, but milder effect.
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KKEUT uses ablative Er:YAG fractional.

How Er:YAG Fractional Works

Er:YAG is highly absorbed by water at 2940 nm, letting us vaporize micro-columns accurately down to the epidermal–dermal interface.

Key advantages: precise depth control, minimal thermal spread, quicker recovery, and lower PIH risk compared with CO₂.

DOE vs. MLA Beam Profiles

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• DOE (Diffractive Optical Element): distributes even energy to each micro-spot → uniform, safer coverage. Output is intentionally limited, so scar work relies more on operator technique.
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• MLA (Microlens Array): hotter center, cooler periphery → useful for deeper scars, but can concentrate heat and prolong downtime.
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We primarily use DOE for even, controlled energy—ideal for pores, fine lines, and texture. For acne scars, we combine DOE with targeted overlap to achieve depth where it’s needed.

Benefits You Can Expect

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• Collagen & elastin renewal: fibroblast activation thickens and firms the dermis → smoother, springier skin
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• Pore refinement: peri-pore fibers realign and tighten → more polished surface
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• Acne-scar remodeling: old scar tissue breaks down and is replaced by new collagen
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Evidence Snapshot

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• Serdar ZA et al., Dermatol Ther. 2019: In 333 patients (face/neck), 3–4 Er:YAG sessions improved texture, wrinkles, and dyschromia.
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• Robati RM et al., J Cosmet Dermatol. 2020: Single-session Er:YAG showed significant improvement in fine lines; ≥3 sessions supported longer durability and pore tightening.
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(Study summaries provided for patient education.)

Who Is It For?

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3. Those seeking a brighter, smoother skin tone
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7. Enlarged pores or atrophic/acne scars
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11. Post-acne marks and fine lines
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15. Anyone wanting to address dullness and lax texture
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Treatable Areas

Face, neck, backs of hands, and other sites showing fine wrinkling or texture changes.

Treatment Steps

STEP 01 One-to-one consultation

STEP 02 Topical anesthetic

STEP 03 Er:YAG fractional (with tailored overlap)

STEP 04 Soothing care (cooling + calming pack) and optional booster delivery

Aftercare

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• Avoid cleansing/makeup the same day; start gentle cleansing the next day.
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• Grid marks, redness, and tenderness may last up to ~7 days; use cooling (ice packs) as needed.
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• Expect micro-flaking around day 3–4—do not pick; allow natural shedding.
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• Until flaking is complete, avoid alcohol, smoking, sauna/bathhouse, swimming.
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• From treatment day through 1–2 weeks post-shedding, apply barrier/healing ointments consistently.
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• Prioritize hydration and broad-spectrum sunscreen when outdoors.
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Quick Advantages

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3. Effective for dilated pores and acne marks
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7. Micro-channels stimulate even regeneration
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11. Improves tone and firmness along with texture
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Our Medical Pledge

“No two skins are the same—even on the same person day to day. Under the name ‘fractional,’ we adjust energy and depth in 0.1-level steps according to that day’s skin.

The real success of fractional doesn’t live in the machine—it lives in the hands that guide it.

If you’ve chosen us, we intend to honor that trust with precision and safety.”