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Study on the development of wax emulsion with liquid crystal structure and its moisturizing and frictional interactions with skin.
Colloids Surf B Biointerfaces. 2018 Nov 01; 171:335-342.CS

Abstract

The moisturizing and frictional interactions between emulsion and skin have a significant influence on the moisturizing efficacy and sensory properties of cosmetics. To deeply understand the interactions, we developed a kind of wax emulsion with liquid crystal structure and studied their interactions with dry, semi-moist and fully-moist skin. The moisturizing interaction was studied by using skin hydration test and tape stripping analysis, and it was found that with the increasing of liquid crystal content in the emulsion, the skin hydration level increased, desquamation index decreased and number of cutaneous lines increased, suggesting the increased moisturizing effect and barrier function. The frictional interaction was studied by finger friction test, and it was found that firstly during and after the application of emulsion on skin, the frictional interaction followed the stribeck-curve rule of lubrication. Secondly, when changing the water content of the substrate skin, the frictional behavior of the whole system showed a bell-curve behavior. Both skin hydration and water amount in the interfacial film played role in the frictional interaction between emulsion and skin, and the frictional interaction mechanism between wax emulsion and finger skin with different type of skin was proposed. This was the first time to study and discuss the effect of skin moist status on the moisturizing and frictional interactions between cosmetic emulsion and skin. The findings were significant for the design of high quality personal care products.

Authors+Show Affiliations

Laboratory for Advanced Lubricating Material, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China; Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China.Laboratory for Advanced Lubricating Material, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China.Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China.Laboratory for Advanced Lubricating Material, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, China. Electronic address: zengxq@sari.ac.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30055474

Citation

Wang, Ye, et al. "Study On the Development of Wax Emulsion With Liquid Crystal Structure and Its Moisturizing and Frictional Interactions With Skin." Colloids and Surfaces. B, Biointerfaces, vol. 171, 2018, pp. 335-342.
Wang Y, Li J, Shang Y, et al. Study on the development of wax emulsion with liquid crystal structure and its moisturizing and frictional interactions with skin. Colloids Surf B Biointerfaces. 2018;171:335-342.
Wang, Y., Li, J., Shang, Y., & Zeng, X. (2018). Study on the development of wax emulsion with liquid crystal structure and its moisturizing and frictional interactions with skin. Colloids and Surfaces. B, Biointerfaces, 171, 335-342. https://doi.org/10.1016/j.colsurfb.2018.07.039
Wang Y, et al. Study On the Development of Wax Emulsion With Liquid Crystal Structure and Its Moisturizing and Frictional Interactions With Skin. Colloids Surf B Biointerfaces. 2018 Nov 1;171:335-342. PubMed PMID: 30055474.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study on the development of wax emulsion with liquid crystal structure and its moisturizing and frictional interactions with skin. AU - Wang,Ye, AU - Li,Jiusheng, AU - Shang,Yazhuo, AU - Zeng,Xiangqiong, Y1 - 2018/07/19/ PY - 2018/02/06/received PY - 2018/05/09/revised PY - 2018/07/18/accepted PY - 2018/7/29/pubmed PY - 2018/11/13/medline PY - 2018/7/29/entrez KW - Fischer-Tropsch wax KW - Frictional interaction KW - Liquid crystal emulsion KW - Moisturizing KW - Skin hydration SP - 335 EP - 342 JF - Colloids and surfaces. B, Biointerfaces JO - Colloids Surf B Biointerfaces VL - 171 N2 - The moisturizing and frictional interactions between emulsion and skin have a significant influence on the moisturizing efficacy and sensory properties of cosmetics. To deeply understand the interactions, we developed a kind of wax emulsion with liquid crystal structure and studied their interactions with dry, semi-moist and fully-moist skin. The moisturizing interaction was studied by using skin hydration test and tape stripping analysis, and it was found that with the increasing of liquid crystal content in the emulsion, the skin hydration level increased, desquamation index decreased and number of cutaneous lines increased, suggesting the increased moisturizing effect and barrier function. The frictional interaction was studied by finger friction test, and it was found that firstly during and after the application of emulsion on skin, the frictional interaction followed the stribeck-curve rule of lubrication. Secondly, when changing the water content of the substrate skin, the frictional behavior of the whole system showed a bell-curve behavior. Both skin hydration and water amount in the interfacial film played role in the frictional interaction between emulsion and skin, and the frictional interaction mechanism between wax emulsion and finger skin with different type of skin was proposed. This was the first time to study and discuss the effect of skin moist status on the moisturizing and frictional interactions between cosmetic emulsion and skin. The findings were significant for the design of high quality personal care products. SN - 1873-4367 UR - https://www.unboundmedicine.com/medline/citation/30055474/Study_on_the_development_of_wax_emulsion_with_liquid_crystal_structure_and_its_moisturizing_and_frictional_interactions_with_skin_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0927-7765(18)30487-9 DB - PRIME DP - Unbound Medicine ER -