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China Surfactant Detergent & Cosmetics ›› 2023, Vol. 53 ›› Issue (10): 1166-1172.doi: 10.3969/j.issn.2097-2806.2023.10.007

• Development and application • Previous Articles     Next Articles

Application of amino acid derivative reactivity assay for skin sensitization prediction of cosmetics

Ding Shixuan,Li Xiaolin*(),Chen Yu,Yu Jie   

  1. Technical Center for Animal, Plant and Food Inspection & Quarantine of Shanghai Customs, Shanghai 200135, China
  • Received:2022-09-29 Revised:2023-09-25 Online:2023-10-22 Published:2023-10-27
  • Contact: *Tel.: +86-15801777850, E-mail: xiaol_lee@126.com.

Abstract:

A laboratory method of amino acid derivative reactivity assay (ADRA) was established and validated based on the OECD guideline. Meanwhile, the possibility of applying ADRA to predict skin sensitization in cosmetic products was also evaluated. According to the guidance of OECD 442C, test substances (including chemicals and toners) were incubated with cysteine and lysine derivatives at a ratio of 50∶1, respectively, in the dark for 24 h. The amino acid derivatives consumptions were analyzed by high performance liquid chromatography (HPLC). The percent depletion was calculated, and each chemical was classified into sensitizers and non-sensitizers using the ADRA prediction model. The same test substances were applied to an ADRA commercial kit. The results show that, 13 chemicals are correctly classified by ADRA as sensitizers or non-sensitizers. The results obtained in the lab are consistent with LLNA data, OECD TG 442C and the results of the commercial kit. Four toners are identified by ADRA as sensitizers and one as non-sensitizer.

Key words: cosmetics, amino acid derivative reactivity assay (ADRA), skin sensitization, alternative methods

CLC Number: 

  • TQ658