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China Surfactant Detergent & Cosmetics ›› 2022, Vol. 52 ›› Issue (11): 1241-1247.doi: 10.3969/j.issn.1001-1803.2022.11.014

• Analytical methods and testing • Previous Articles     Next Articles

Study on the detection of preservatives in infant and adult skin care products by HPLC

Liu Hui,Li Li,Liu Tingyuan,Xu Qinke,Sun Ying*(),Guo Zhaohui   

  1. Gansu Institute of Drug Inspection, Lanzhou, Gansu 730000, China
  • Received:2021-12-19 Revised:2022-10-26 Online:2022-11-22 Published:2022-11-22
  • Contact: Ying Sun E-mail:331569802@qq.com.

Abstract:

The situation of addition of preservatives in infant and adult skin care products was studied, which is expected to accumulate scientific data for the safety monitoring and quality research of preservatives therein. 12 preservatives were detected for 140 batches of skin care products based on the method for 23 preservatives as shown in the “Technical Specification for Safety of Cosmetics “ (2015 edition) (Announcement No. 17 of 2021, National Medical Products Administration). The test results were statistically analyzed. The results showed that, the linear correlation coefficients were all greater than or equal to 0.996 9, the recovery rate of standard addition was 91%-104%, and the RSD was less than 5.0%. There were many samples from Guangdong Province and Shanghai, and no over-limits or prohibited components were detected. Phenoxyethanol, methylparaben and propylparaben are more frequently used; phenoxyethanol is frequently used in infant skin care products; methylparaben and propylparaben are commonly compounded in retention products, and the frequency of use in adult skin care products is high; the mixture of methylchloroisothiazolinone, methylisothiazolinone, magnesium chloride and magnesium nitrate has only been added to rinse-off products. There are a maximum of 1-3 components in a single batch of infant skin care products of 54 batches, and a maximum of 1-3 components in a single batch of samples in adult skin care products of 62 batches. The amount of preservatives in infant skin care products (0-2.3%) is significantly higher than that of adult skin care products (0.000 16%-1.19%). In this test, presence of 1-3 preservatives in infant and adult skin care products has become the mainstream, and phenoxyethanol, methylparaben and propylparaben are the main preservative components.

Key words: infants and young children, adults, skin care product, retention product, rinse-off product, preservative, rationality, inspection and analysis

CLC Number: 

  • TQ658