The Sebumeter® is the most widely acknowledged and successful sebum measurement device for skin, hair and scalp. Various in vitro and in vivo tests and comparisons with other measurement techniques are documented in literature and demonstrate its importance in dermatological and cosmetological fields. The measurement with the Sebumeter® SM 815 allows determination of even slightest changes in the skin surface sebum content.

The Measuring Principle
The measurement is based on grease-spot photometry. A special tape becomes transparent in contact with the sebum on the skin surface. For the determination of the sebum, the measuring head of the cassette is inserted into the aperture of the device, where the transparency is measured by a light source sending light through the tape which is reflected by a little mirror behind the tape. A photocell measures the transparency. The light transmission represents the sebum content on the surface of the measuring area. A microprocessor calculates the result, which is shown on the display in µg sebum/cm² of the skin.

The Probe (Cassette)
The measuring head of the cassette exposes a 64 mm2 measuring section of the tape. For a measurement the tape is transported forward by a trigger at the side of the cassette to expose a new section of the tape. The used tape is rewound inside the cassette. One cassette can be used for approx. 450 measurements. The scale from 1-0 on the trigger shows how much of the tape is still unused. For hygienic reasons when exhausted, the cassette is simply replaced. The modern, high quality electronics allow a very quick measurement. A spring in the measuring head provides constant pressure on the skin. Its low weight makes handling easy.

Check Calibration
The new technology of the Sebumeter® SM 815 does not require frequent, complicated and time consuming recalibration. The accuracy of the device can easily be checked at any time with a specific test cassette with a fixed value.
Technical Data
Measuring cassette: Dimensions: 8.5 x 11.3 x 2.3 cm, Weight: approx. 65 g
Measuring surface: approx. 46 mm² Accuracy: ± 5 %
Technical changes may be made without prior notice.