Document Detail

Clinical comparison of four hair removal lasers and light sources.
MedLine Citation:
PMID:  16766483     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND OBJECTIVE: There are few clinical studies directly comparing the efficacy of multiple hair removal systems in the same individual. This study evaluates the efficacy of four highly popular systems for laser hair removal. METHODS: In this prospective comparison study, 10 subjects underwent treatment of unwanted hair on the back or thigh. Subjects were skin types I-III, aged 18-55 years. All were treated twice with (1) an intense pulsed light with a red filter; (2) an intense pulsed light with a yellow filter; (3) an 810 nm diode laser; and (4) a 755 nm alexandrite laser. Four treatment areas, using commonly accepted parameters for permanent hair reduction, as well as a control non-treated area were selected. Each treatment area was evaluated with a camera system specifically designed for hair counts at 1, 3, and 6 months after the second treatment by a blinded non-treating physician. Clinical results and adverse events were also noted. RESULTS: Evaluation of photographs at 1, 3, and 6 months revealed a significant decrease in hair counts (approximately 50%) and hair coverage (approximately 55%). In the hairs that remained after two treatments, no statistical difference was noted in hair length or diameter. There was no statistical difference in efficacy between the four different light devices. Minimal transient adverse effects were noted from all systems. The cryogen spray-based alexandrite laser showed the highest pain scores. CONCLUSION: Although hair removal with commonly used systems is, as expected, highly effective, treatment with light-based devices can cause less pain, yet show efficacy similar to laser systems.
Snehal P Amin; David J Goldberg
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Publication Detail:
Type:  Comparative Study; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Journal of cosmetic and laser therapy : official publication of the European Society for Laser Dermatology     Volume:  8     ISSN:  1476-4172     ISO Abbreviation:  J Cosmet Laser Ther     Publication Date:  2006 Jun 
Date Detail:
Created Date:  2006-06-12     Completed Date:  2006-08-16     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  101136419     Medline TA:  J Cosmet Laser Ther     Country:  England    
Other Details:
Languages:  eng     Pagination:  65-8     Citation Subset:  IM    
Skin Laser and Surgery Specialists of NY & NJ, and The Mount Sinai School of Medicine, New York, NY 10022, USA.
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MeSH Terms
Double-Blind Method
Hair Removal / instrumentation*
Hypertrichosis / therapy*
Laser Therapy*
Middle Aged
Prospective Studies

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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