Insights on an in vivo model for postinflammatory hyperpigmentation

Abstract

Postinflammatory hyperpigmentation (PIH) can occur following a multitude of inflammatory skin conditions including acne vulgaris. It is more common in darker Fitzpatrick phototypes and represents a common skin complaint in dermatology offices. Despite its common occurrence, treatment options for PIH remain limited. Isedeh et al. published a validated in vivo model for PIH in which 35% trichloroacetic acid (TCA) solution was used to simulate truncal acne‐induced PIH.

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