Elm Courtney M L, Wallander Irmina D, Walgrave Susan E, Zelickson Brian D
Zel Skin and Laser Specialists ,4100 West 50th Street, Edina, Minnesota 55424, USA.
Lasers Surg Med. 2010 Apr;42(4):287-91. doi: 10.1002/lsm.20917.
The principle of selective photo-thermolysis has been studied extensively for hair removal applications in a medical setting. A new, portable, hand-held device featuring two filtered Xenon lamps that utilizes pulsed light in low optical fluencies for hair removal has been developed for consumer use. The purpose of this clinical study was to determine the efficacy and safety of this low-energy, pulsed-intense light device intended for home use hair removal. STUDY DESIGN/ MATERIALS AND METHODS: The treatment group consisted of 10 adults with skin types I-IV who possessed unwanted dark hair in the non-facial region. The subjects received between 4 and 6 treatments on a bi-weekly basis with the device by a trained member of the clinical staff. The clinical responses were evaluated by performing manual hair counts using magnified vision and photographs which were obtained prior to treatment and at each subsequent visit.
Mean hair reduction was 36% 4 weeks after the final treatment and 10% 12 weeks after the final treatment. This resulted in a mean hair count reduction of 23% over the two follow-up appointments. There was no definitive correlation between customer satisfaction and hair count reduction. Adverse reactions were limited to transient, localized, post-treatment erythema. No complications were encountered.
This low-energy, pulsed-light device is a quick, safe, and relatively effective at-home hair reduction treatment option in patients with various skin phototypes.
选择性光热解原理已在医学环境中的脱毛应用方面得到广泛研究。一种新型便携式手持设备已被开发用于消费者，其配备两个经过滤的氙灯，利用低光通量的脉冲光进行脱毛。本临床研究的目的是确定这种用于家庭脱毛的低能量脉冲强光设备的疗效和安全性。
研究设计/材料与方法：治疗组由10名皮肤类型为I - IV型的成年人组成，他们在非面部区域有多余的深色毛发。受试者由临床工作人员中经过培训的成员使用该设备，每两周接受4至6次治疗。通过在治疗前及每次后续就诊时使用放大视力进行手动毛发计数和拍照来评估临床反应。
最后一次治疗后4周平均毛发减少36%，最后一次治疗后12周减少10%。这导致在两次随访预约期间平均毛发计数减少23%。顾客满意度与毛发计数减少之间没有明确的相关性。不良反应仅限于短暂的、局部的治疗后红斑。未出现并发症。
这种低能量脉冲光设备对于各种皮肤光类型的患者来说，是一种快速、安全且相对有效的家庭脱毛治疗选择。
