A film with a real star: the human skin.
Sebumetry is a method employed for quantifying the fat content of the skin. The semi-transparent synthetic film used in this technique becomes transparent at the point of contact with the skin’s sebum. Once the probe has been pressed against the skin, the actual evaluation takes place in the base station, which involves light being projected through the synthetic film and reflected by a mirror. The transmission of the light is captured by a photo cell and then measured. The luminous intensity recorded in this way is an indication of the sebum content of the skin at the test site.