OBJECTIVE: To assess color match and subject satisfaction for 7 universal tinted sunscreens across various price ranges in all Fitzpatrick skin phototypes (SPT).
METHODS: Products A-G were applied at concentrations of 1 and 2 mg/cm2 on the dorsal arms of 30 subjects spanning SPT I-VI. Photography, colorimetry, and subject and investigator surveys were utilized to determine color match.
RESULTS: Using colorimetry analysis at the recommended 2 mg/cm2 concentration, two of seven products were identified as suitable matches for SPT I-II, while six out of seven were determined to be a good match for SPT III-IV. However, only one product was found to be a good match for SPT V-VI at the recommended concentration according to colorimetry results.
CONCLUSIONS: Universal tinted sunscreens do not provide an adequate color match for all skin phototypes, especially for individuals with very fair or very dark skin tones.
目的:在所有Fitzpatrick皮肤光型(SPT)的各种价格范围内,评估7种通用有色防晒霜的颜色匹配和受试者满意度。
方法:产品A-G以1和2mg/cm2的浓度应用于30名跨越SPTI-VI的受试者的背臂上。摄影,比色法,受试者和研究者调查用于确定颜色匹配。
结果:在推荐的2mg/cm2浓度下使用比色法分析,七个产品中的两个被确定为SPTI-II的合适匹配,而七分之六被确定为SPTIII-IV的良好匹配。然而,根据比色法结果,在推荐浓度下,只有一种产品与SPTV-VI匹配良好.
结论:通用着色防晒霜不能为所有皮肤照片提供足够的颜色匹配,特别是对于肤色非常白皙或非常暗的人。