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http://dx.doi.org/10.9729/AM.2012.42.1.043

Scanning Electron Microscopic Study on the Wax Structures in Lipstick According to Storage Temperature After Mold  

Kwon, Rok-Hee (Department of Cosmetology, The Graduate School of Information and Industry, Hanseo University Seosan)
Chang, Byung-Soo (Department of Cosmetology, Hanseo University Seosan)
Publication Information
Applied Microscopy / v.42, no.1, 2012 , pp. 43-48 More about this Journal
Abstract
This study shows that ceresin wax, candellila wax and microcrystalline wax mixed together with liquid paraffin oil to produce lipsticks (LS-1, LS-2) and capric/caprylic triglyceride oil added to produce lipsticks (LS-3, LS-4). After each type of lipsticks were molded, LS-1 and LS-3 was put into a cooling chamber ($5^{\circ}C$). LS-2 and LS-4 was put into a cooling chamber ($5^{\circ}C$) for 18 hours and kept in an incubator ($45^{\circ}C$) for 5 hours and put again into a cool chamber ($5^{\circ}C$). After that, the wax's three dimensional network structure was observed under scanning electron microscopy. Regardless of the kind of oil, the LS-1 and LS-3 wax structure had more distinct shape than the lipstick wax structure of LS-2 and LS-4. Also, regardless of the kind of wax, the three dimensional network structure was modified as the storage temperature increased. As a result, the lipstick's molding temperature increased, the wax's structure size also increased and the shape irregularly modified. This modification causes sweating phenomenon which affected lipstick's surface rheological property.
Keywords
Lipstick; Lip make-up; SEM; Sweating; Wax;
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