Skin of Color Center, St Luke's Roosevelt Hospital, 1090 Amsterdam Avenue Suite 11B, New York, NY, 10025, U.S.A; Department of Dermatology, Columbia University College of Physicians and Surgeons, 161 Fort Washington Avenue, 12th Floor, New York, NY, 10032, U.S.A.
Br J Dermatol. 2013 Oct;169 Suppl 3:91-7. doi: 10.1111/bjd.12526.
Ethnic skin or 'skin of colour', which is characterized by increased epidermal melanin, labile melanocytes and reactive fibroblast responses, poses special challenges for the use of laser and light-based therapies. These therapies are associated with a greater risk of dyspigmentation and scarring in ethnic skin and therefore require careful selection of device and treatment parameters to minimize complications. Whereas early-generation lasers for hair removal and resurfacing were generally contraindicated for individuals with Fitzpatrick skin phototypes (SPT) IV-VI, advances in the past decade have given rise to a range of devices that can be safely used in ethnic skin. Longer wavelength lasers such as the 810 and 1064 nm Nd:YAG; intense pulsed light and monochromatic excimer light (308 nm); fractional lasers; and radiofrequency devices have all been used safely for hair removal, pigmentary abnormalities, resurfacing and skin tightening in ethnic skin, respectively. Notwithstanding these advances, nuances in the laser or light treatment of darker skin types remain and must be considered to ensure safe therapeutic outcomes. The vast majority of published data pertaining to lasers and light treatments in nonwhite skin involve patients of East Asian ethnicity (e.g. Korean, Japanese, Chinese, Thai). By contrast, there is a paucity of studies involving individuals of African ancestry or those with SPT V or VI. This article will review laser and light-based modalities that are considered safe and effective for individuals with richly pigmented skin.
皮肤呈肤色或“有色人种皮肤”，其特点是表皮黑色素增加、黑素细胞不稳定以及成纤维细胞反应活跃，这对激光和光基疗法的应用提出了特殊挑战。这些疗法与色素沉着异常和瘢痕形成的风险增加有关，因此需要仔细选择设备和治疗参数，以最大程度地减少并发症。虽然早期用于脱毛和换肤的激光一般不建议用于 Fitzpatrick 皮肤光型（SPT）IV-VI 的个体，但过去十年的进展带来了一系列可安全用于有色人种皮肤的设备。较长波长的激光，如 810nm 和 1064nmNd:YAG 激光；强脉冲光和单色准分子光（308nm）；分段式激光；以及射频设备，分别已被安全用于脱毛、色素异常、换肤和皮肤紧致治疗。尽管取得了这些进展，但在深色皮肤类型的激光或光治疗中仍存在细微差别，必须加以考虑，以确保安全的治疗效果。绝大多数关于非白人皮肤激光和光治疗的已发表数据涉及东亚人种（如韩国人、日本人、中国人、泰国人）的患者。相比之下，涉及非洲血统个体或 SPT V 或 VI 的研究很少。本文将回顾被认为对色素沉着较多的个体安全且有效的基于激光和光的治疗方式。
