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Hair reduction using a scanning 800 nm diode laser.

W P Baugh1, J P Trafeli, D J Barnette

  • 1Dermatology Department, Naval Medical Center-San Diego, San Diego, CA 34520, USA.

Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [Et Al.]
|April 12, 2001
PubMed
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This study shows that an 800 nm diode laser effectively reduces hair. Higher laser energy (fluence) and darker hair color led to better hair reduction results.

Area of Science:

  • Dermatology
  • Aesthetic Medicine
  • Laser Technology

Background:

  • Limited research exists on factors influencing laser hair reduction efficacy.
  • Key variables like fluence, light dose, hair color, and treatment number require further investigation.

Purpose of the Study:

  • To assess the effectiveness and safety of a scanning 800 nm diode laser for hair reduction.
  • To explore the impact of varying fluence levels on hair reduction outcomes.

Main Methods:

  • An 800 nm scanning diode laser was applied to adult patients with dark hair.
  • Treatments involved fluences of 24, 38, or 48 J/cm², with 1-4 sessions.
  • Hair reduction was measured at 30 and 90 days post-treatment.

Main Results:

Related Experiment Videos

  • A significant, fluence-dependent reduction in hair was observed.
  • The highest fluence (48 J/cm²) yielded a mean hair reduction of 43% at 30 days and 34% at 90 days.
  • Darker hair colors responded more favorably to the laser treatment.

Conclusions:

  • A scanning 800 nm diode laser is a safe and effective method for hair reduction.
  • Treatment outcomes are influenced by laser fluence and patient hair color.