Departments of Dermatology and Biomedical Engineering, Northwestern University, Chicago, Illinois.
Dermatol Surg. 2014 Feb;40(2):142-51. doi: 10.1111/dsu.12407. Epub 2014 Jan 18.
Home hair removal devices are available for skin types I to IV. Side effects may limit hair removal in darker-pigmented individuals.
To evaluate a home hair removal device using combined radiofrequency (RF) and intense pulsed light (IPL) energy for effectiveness and safety with all skin types (I-VI).
Two study designs: effectiveness (treating 94 bilateral patient areas weekly seven times, with one side then receiving three additional treatments at 4-week intervals) and safety (37 patient areas treated every 2-4 days for three sessions).
Hairs were counted 3 months after treatment for the first design and 2 months after for the second.
In the first study design, 55% hair count reduction was achieved1 month after seven treatments to all sites. The side with no further sessions had 43% hair reduction and the side receiving ongoing treatment had 58% reduction after two further treatments. Side effects were transient and minor. In the second study, with 46% of the patients having skin types V/VI, 2 months after the procedure there was 44% hair reduction. There were no adverse effects reported.
For the first time, a home hair removal device has been shown to be effective and safe in all skin types using a low-energy RF-IPL device.
家用脱毛设备适用于皮肤类型 I 至 IV。副作用可能会限制深色皮肤个体的脱毛效果。
评估一种使用射频(RF)和强脉冲光(IPL)联合能量的家用脱毛设备,以评估其在所有皮肤类型(I-VI)中的有效性和安全性。
两项研究设计:有效性(每周对 94 个双侧患者部位进行 7 次治疗,其中一侧随后在 4 周间隔接受 3 次额外治疗)和安全性(每 2-4 天对 37 个患者部位进行 3 次治疗)。
第一次设计中,治疗后 3 个月进行毛发计数,第二次设计中,治疗后 2 个月进行毛发计数。
在第一项研究设计中,所有部位经过 7 次治疗后 1 个月,毛发计数减少了 55%。未进行进一步治疗的一侧毛发减少了 43%,而继续接受治疗的一侧在进行了两次额外治疗后毛发减少了 58%。副作用是短暂和轻微的。在第二项研究中,46%的患者皮肤类型为 V/VI,治疗后 2 个月,毛发减少了 44%。没有报告不良反应。
首次使用低能量 RF-IPL 设备,证明了一种家用脱毛设备在所有皮肤类型中均有效且安全。