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The Efficacy and Safety of Long-Pulsed Alexandrite Laser and Long-Pulsed Nd:YAG Laser in Hair Removal- A Preliminary Clinical Study
Stephanie Wei Lai, Shu-Feng Kan*, Woan-Ruoh Lee
Dermatol Sinica 23:64-68,2005

Excessive hair has been a common cosmetic concern for both males and females for
centuries. Axillary hair is especially unsightly for women in certain cultures during
the summer time. The use of long-pulsed Alexandrite laser in hair removal has been
reported in the literature1,2,3. In this study, we compared the efficacy and safety in hair
removal by long-pulsed Alexadrite laser and Nd:YAG laser. We recruited 8 female
patients and each one underwent Alexandrite laser therapy on the right axilla and
Nd:YAG laser therapy on the left axilla. Every patient received 3 treatment sessions in
4 months and was subsequently followed up for 6 months. At the end of the study,
there was a reduction of hair density of 76.7% on the right axilla and 55.2% on the
left axilla. The difference was borderline ( p value= 0.0569). However, both lasers
can be used safely and effectively in the hair removal in Asians.

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