Читать книгу Surface Science and Adhesion in Cosmetics - Группа авторов - Страница 48

Simple lipstick containing a single oil with polyethene wax was applied twice on a flat-type Bioskin from Beaulax Co., Ltd, Japan. The application amount of lipstick on the Bioskin was determined from the weight difference after and before application. Then, the thickness of lipstick deposit (film thickness) can be calculated from the values of application area, weight of deposit and density of lipstick.