A Method of Evaluation Efficacy of Cosmetics Exfoliator and Its Application  

作　　者：Lai Qinrun Xu Sisi Ai Yan Zhu Siyang 

机构地区：[1]Hua An Tang Biological and Technology Group,China

出　　处：《China Detergent & Cosmetics》2024年第2期43-48,共6页日用化学品科学（英文版）

摘　　要：Measuring the tanning skin can provide a scientific method to evaluate the efficacy of cosmetics exfoliator.Dihydroxyacetone(DHA,5.0%(w/w))was used to stain the inner forearms cuticle of subjects.The skin surface L*and b*were determined,then ITA and its recovery rate were calculated to evaluate the exfoliating efficacy of cosmetics.The results showed that no significant(P≥0.05)differences were observed for L*,b*and ITA on different skin surface of unstained subjects.After staining with DHA,no adverse reaction was found in the stained areas,and the changes of L*,b*and ITA on different skin surface were consistent(P≥0.05).Two different cosmetics were used continuously to exfoliate the skin in different areas.After treatment for 7 days,the corresponding areas of skin L*,b*and ITA had significant(P<0.05)improvement in comparison with negative control area.But there were differences in the evaluation results of the exfoliation efficacy using these three parameters.The recovery rate of ITA of two samples improved significantly(P<0.05)than the negative control area.The work indicated that using 5.0%DHA for skin browning and measuring the skin surface color change by ITA recovery rate can accurately and sensitively assess the skin cuticle renewal rate difference.This method can be used as one of the effective way to evaluate the efficacy of cosmetics exfoliation.

关 键 词：DIHYDROXYACETONE exfoliator individual typology angle recovery rate 

分 类 号：TQ658[化学工程—精细化工]