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China Surfactant Detergent & Cosmetics ›› 2025, Vol. 55 ›› Issue (9): 1153-1162.doi: 10.3969/j.issn.2097-2806.2025.09.009

• Development and application • Previous Articles     Next Articles

Foam and mildness study of trehalolipid surfactant in rinse off formulations

Mei Chen1,*(),Yaoyao Wu1,Dandan Xia1,Xiaowei Chang1,Guizhen Su2,Chen Liu2   

  1. 1. Proya Cosmetic Co. Ltd., Shanghai 200000, China
    2. Sino Lion USA, Nanjing, Jiangsu 210009, China
  • Received:2024-11-11 Revised:2025-08-15 Online:2025-09-22 Published:2025-10-11
  • Contact: *E-mail: mchen2014@126.com. E-mail:mchen2014@126.com

Abstract:

The paper investigates the foaming and mildness properties of trehalolipids surfactant in rinse-off formulations, comparing it with the traditional nonionic surfactant alkyl-polyglycolide (APG). Both single surfactant and their surfactant complexes are evaluated. And the results show that trehalolipids have significant advantages in reducing surface tension, improving foam performance, and enhancing mildness. For mildness evaluation, multiple methods are employed in the study, including in vitro cell toxicity, inflammatory markers, colorimetric index of mildness CIM, and in vivo method of human skin patch test. The results show that the addition of trehalolipids increases IC50 and reduces the release of inflammatory markers of the binary surfactant system. However, the incorporation of trehalolipids has some negative effects on the skin’s lipid barrier function. Skin patch test results indicate that the addition of trehalolipids improves the mildness of surfactant system, particularly in sulfate-free system. Overall, trehalolipids, as nonionic surfactants, presents great potential to replace traditional surfactants in rinse off formulations with enhanced mildness and foam performance.

Key words: trehalolipids, foam, mildness, colorimetric index of mildness CIM, zeta potential, skin patch test

CLC Number: 

  • TQ423