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GlossaryFluence

amount of laser energy per unit area

Fluence refers to the amount of laser energy delivered per unit area, typically measured in joules per square centimeter (J/cm²). In the context of laser hair removal, fluence is a critical parameter that determines the effectiveness of the treatment; higher fluence levels can result in more efficient hair follicle destruction, but must be carefully controlled to avoid skin damage.

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research A prospective, comparative evaluation of axillary hair removal with an 808-nm diode laser at different fluences

April 2019 in “Archives of aesthetic plastic surgery”

Higher fluences in 808-nm diode laser treatments are more effective for axillary hair removal.

research Temporary hair removal by low fluence photoepilation: Histological study on biopsies and cultured human hair follicles

134 citations , September 2008 in “Lasers in surgery and medicine”

Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.

research Low‐fluence Q‐switched Nd: YAG 1064‐nm laser and intense pulsed light for the treatment of melasma

54 citations , November 2014 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology”

Combining LFQS and IPL is more effective and faster for treating melasma than LFQS alone.