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China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (1): 54-58.doi: 10.3969/j.issn.1001-1803.2020.01.010

• Analytical methods and testing • Previous Articles     Next Articles

Analysis on the determination results of 32 kinds of dyes used in oxidized blackening hair dyes

LI Bin,ZHANG Wei-qing(),LIU Hui-jin,HOU Li-nan,QIAO Ya-sen,WANG Hai-yan()   

  1. National Institutes for Food and Drug Control, Beijing 100050, China
  • Received:2019-11-07 Revised:2019-12-17 Online:2020-01-22 Published:2020-01-16
  • Contact: Wei-qing ZHANG,Hai-yan WANG E-mail:zhangweiqing@nifdc.org.cn;Summerwhy163@163.com

Abstract:

The 25 batches of commercially available oxidized blackening hair dyes were collected, and the contents of 32 selected chemical substances including p-Phenylenediamine in these products were assessed according to Safety and Technical Standards for Cosmetics (2015 edition). The content analysis results were compared with the approved formulas and labels of each product. The purpose of the survey was to gather information about the production and quality of this kind of hair dyes on domestic market, with the goal of uncovering the safety risks and providing supervision suggestions. The result shows that none of the eight prohibited components involved in the 32 components are detected in all investigated products. With regard to the 24 permitted hair dye components, phenyl methyl pyrazolone was found to exceed the permitted limit in 6 batches of the products. 17 batches of samples were inconsistent with the test results and the approved formulas, 16 batches of samples were inconsistent with the test results and the labels, and 5 batches of samples were inconsistent with the approved formulas and the labels. 17 batches of samples in total were problematic, with the problem discovery rate of 68%. According to the results, it is necessary to strengthen the inspection of hair dyes containing phenyl methyl pyrazolone, and carry out the special rectification in packages and labels. The reasons for the excessive addition of phenyl methyl pyrazolone was analyzed in the survey.

Key words: oxidized blackening hair dyes, approved formulas, labels, phenyl methyl pyrazolone, supervision suggestions

CLC Number: 

  • TQ658.3