Low-fluence vs. standard fluence hair removal: A contralateral control non-inferiority study

Shlomit Halachmi, Moshe Lapidoth

Research output: Contribution to journalArticlepeer-review

Abstract

Introduction: Laser hair removal at lower fluences, delivered under certain conditions, may retain the efficacy of high-fluence lasers while improving tolerability. We performed a pilot study comparing the efficacy, safety and tolerability of laser hair removal using traditional settings compared to lower fluences, delivered from a larger handpiece and under vacuum. Material and methods: Fourteen healthy participants underwent 5 axillary hair removal treatments with an 800 nm diode laser at 1-month intervals, with follo-wup 1 and 3 months after the 5th treatment. In all patients, one side was treated with standard parameters using a 9×9 mm chilled tip and gel, while the contralateral side was treated using a 22×35 mm vacuum-assisted handpiece at fluences up to 12 J/cm 2. Follow-up assessments were performed after each treatment and at each follow-up visit, and included photography and questionnaires. Results: Eleven participants completed the study and follow-up. All experienced significant hair removal in all treated areas. At the 3-month follow-up visit, the high-fluence and low-fluence treated axillae demonstrated comparable hair reduction. Participants found the lower fluence treatments to be more tolerable. No adverse events were reported. Conclusion: Lower fluence diode laser, delivered under conditions of vacuum and using larger spot sizes, can provide significant hair reduction.

Original languageEnglish
Pages (from-to)2-6
Number of pages5
JournalJournal of Cosmetic and Laser Therapy
Volume14
Issue number1
DOIs
StatePublished - Feb 2012

Keywords

  • Fluence
  • Hair removal
  • Laser
  • Low fluence
  • Selective photothermolysis

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