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机构地区:[1]广东出入境检验检疫技术中心,广东广州510623 [2]广东药学院,广东广州510130
出 处:《中国卫生检验杂志》2013年第10期2256-2258,共3页Chinese Journal of Health Laboratory Technology
基 金:国家科技支撑计划(2011BAI15B03)
摘 要:目的通过组合使用不同无创性皮肤颜色测试法评价美白化妆品功效。方法选取平均年龄在34岁的女性志愿者30名,全脸连续使用含植物活性成分的美白精华面膜60 d,在第0 d,30 d和60 d,采用CM-2600d三刺激色度计测量面颊、下颚、额头和颈部皮肤的L*、a*、b*、ΔE值,用Maxmeter MX18反射光谱仪测量相同位置的黑色素指数及红色素指数,并比较使用前后的差异。结果皮肤分光光度计检测结果显示,使用面膜后L*值和a*值升高,b*值下降,ΔE值变化明显,60 d后效果显著;皮肤反射光谱仪结果显示黑色素指数明显降低和红色素指数升高,60 d后改善更为明显。2种颜色测试结果表明产品具有美白效果。结论组合使用无创性皮肤颜色检测仪可以客观反映皮肤颜色和色素含量的变化,适用于美白产品的临床功效评估。Objective To evaluate the efficacy of whitening cosmetics by combining different non - invasive skin color test methods. Methods Thirty female volunteers with average age of 34 years old were selected to continu- ously use whitening masque containing plant active ingredients for 60 days. Before use, and on the 30th day and 60th day of use, the skin chromacity parameters( L" , a" , b * and AE) of cheek, chin, forehead and neck were de- teCted by tristimulus colorimeter CM -2600d, while the levels of melanin index(MI) and eryhemin index(EI) were analyzed by Maxmeter MX18 to compare the difference before and after use. Results After use of the whitening masque, the spectrophotometer detection results showed that the L* and a* value increased, the b * value decreased and AE changed obviously, especially after the 60th day. The reflectance spectrometer detection results showed the MI was significant decreased and EI was increased, more obvious effects was found on the 60th day. Both color as- sessments indicated the masque had whitening efficacy. Conclusion The efficacy of skin whitening products can be objectively evaluated by combining different non - invasive methods to detect the skin color and pigments chan- ges.
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