Solar-Induced Postinflammatory Hyperpigmentation after Laser Hair Removal

Abstract

To our knowledge this is the first case of solar-induced PIHP following laser hair removal. The treatment of PIHP is difficult because there are few therapeutic options that are consistently successful. Avoidance of exposure to ultraviolet light should be emphasized to all patients prior to laser therapy. We demonstrated that serial TCA peels provided an additional benefit compared to medical treatment.

Pili Bigeminy Induced by Low Fluence Therapy with Hair Removal Alexandrite and Ruby Lasers

“…1 ^, 2 The mechanism of laser hair removal is thought to be destruction of the hair follicles through selective photothermolysis and thermokinetic selectivity. 3 Melanin in the hair follicle epithelium acts as a chromophore which absorbs the energy at a wavelength of 694 nm for ruby laser and 755 nm for alexandrite laser. However, the exact mechanism is still not clear.…”

Postinflammatory hyperpigmentation after human cold pain testing

“…14,15 Inflammation stemming from these conditions results in the local release of chemical mediators including prostaglandins and leukotrienes, arachidonic acid metabolites that regulate the activity of tyrosinase, the melanocyte-localized enzyme that is responsible for melanin synthesis. 16 The pigmentation in this case was indicative of either epidermal melanosis where excess melanin is endocytosed by resident keratinocytes 17 or dermal melanosis where excess melanin is endocytosed by resident macrophages.…”

Guidelines on the safety of light‐based home‐use hair removal devices from the European Society for Laser Dermatology

“…Other consumer education strategies may include physician‐directed use of home‐use devices, in‐store trained sales consultants and web‐based tutorials. The consumer should be informed of safety issues in general and specifically about the potential implications of light‐induced post‐inflammatory hyperpigmentation following treatment on sun tanned skin 1 …”

“…The consumer should be informed of safety issues in general and specifically about the potential implications of light-induced post-inflammatory hyperpigmentation following treatment on sun tanned skin. 1 Although professional providers are able to accommodate a wider range of skin types and provide faster and possibly longer-lasting treatments than are attainable with home-use systems, domestic devices may still play a significant part in removing unwanted body and facial hair, stimulating hair growth, as well as rejuvenating aged and photodamaged skin amongst a general public unable or unwilling to pay for professional treatments.…”