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Laser Skin Resurfacing: Procedure Types, Benefits, Risks & Recovery

Laser Skin Resurfacing: Ablative vs. Non-Ablative — What to Expect

Laser resurfacing uses focused light energy to create controlled thermal injury, stimulating neocollagenesis and epidermal renewal.

Laser Types & Indications

Category Examples Depth Targets Downtime
Ablative CO₂ (10,600 nm), Er:YAG (2940 nm) Epidermis + dermis (vaporization) Deep wrinkles, acne scars, actinic damage, rhinophyma 10–21 days (raw, oozing → epithelialization)
Fractional Ablative Fractional CO₂ (Fraxel Repair, ActiveFX, DeepFX) Microscopic treatment zones (MTZs) Wrinkles, scars, texture, dyspigmentation 5–7 days (bronzing, desquamation)
Non-Ablative Fractional Er:Glass (1550 nm), Thulium (1927 nm), Diode Dermal only (epidermis spared) Fine lines, mild scars, pores, melasma 1–3 days (erythema, edema)
Non-Ablative (Bulk Heating) Nd:YAG (1064 nm), Diode, IPL (not laser) Dermal heating Skin tightening, vascular, hair removal Minimal (hours)

Procedure Overview (Ablative/Fractional)

  1. Consultation: History (isotretinoin 6–12 mo, herpes, keloids, immunosuppression), skin typing (Fitzpatrick), goals.
  2. Pre-Tx: Antiviral prophylaxis (valacyclovir), antibacterial if indicated, avoid sun/retinoids 2 wks.
  3. Anesthesia: Topical (lidocaine/tetracaine 30–60 min) ± nerve blocks ± sedation (ablative).
  4. Treatment: Patterned passes; density/energy tailored. 30 min – 2 hrs.
  5. Immediate Post: Cooling, occlusive ointment (petrolatum, silicone gel), instructions.

Recovery Timeline (Fractional Ablative Example)

  • Days 1–3: Erythema, edema, “bronzing” (microcrusts).
  • Days 3–7: Desquamation (sanding sensation); strict occlusion.
  • Weeks 2–4: Pink/new skin; makeup allowed after re-epithelialization.
  • Months 3–6: Collagen remodeling continues; final result.

Risks & Complications

  • Infection (HSV reactivation → prophylactic antivirals critical).
  • PIH (post-inflammatory hyperpigmentation) — higher in Fitzpatrick III–VI; pre-tx hydroquinone.
  • Hypopigmentation (delayed, more with ablative).
  • Scarring (rare with fractional; higher with full ablative).
  • Ectropion (lower lid) — avoid aggressive periorbital treatment.
  • Persistent erythema (>3–6 mo).

Choosing a Provider

  • Board-certified dermatologist or plastic surgeon with laser fellowship/training.
  • Device ownership (not renting) = more experience.
  • Review before/after photos of your skin type/concern.
  • Clear discussion of expected downtime, number of sessions, cost.

Laser resurfacing is highly effective when matched to indication, skin type, and patient tolerance. Realistic expectations = satisfaction.

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