Topic

post-inflammatory hyperpigmentation

Ablative fractional CO2 laser for acne scars: 2026 evidence

Mechanism, efficacy data, downtime, and the post-inflammatory hyperpigmentation risk that dominates ablative fractional CO2 resurfacing for atrophic acne scars — with a focus on darker and Asian skin.

Jul 2, 2026 · 6 min · Medically reviewed

MedicalDermatologyNews

Medical

Facial hyperpigmentation: melasma, PIH, or sun spots?

How clinicians tell melasma, post-inflammatory hyperpigmentation, and solar lentigines apart, why it changes treatment and prognosis, and the evidence-based options for each.

Jun 12, 2026 · 4 min · Medically reviewed