The measurement of gloss is very important in the efficacy testing of skin care, hair care and decorative cosmetics (lipsticks, make-up, etc.). Skin and hair are supposed to show a natural, luminous gloss without appearing oily.
The measurement is based on reflection. Parallel white light is created by LEDs in the probe head. To be able to emit light at 60° in a relatively small and uniquely designed measurement head, light is sent out at 0° and reflected by mirrors to 60°. Two separate measurement channels measure the direct reflected light (again guided by a mirror in the same angle into the reflection channel) and the diffuse reflected (scattered) light. The scattered/diffuse reflected light is measured at 0° (completely vertically above the measured surface) under the assumption that light is scattered in the same way over all degrees (diffuse channel).So the Skin-Glossymeter GL 200 expresses both, the portion of directly reflected light (gloss) and the diffuse scattered portion from the skin surface.
There are many applications in the R&D departments of the cosmetic industry where gloss is of interest.
Please also read Frequent Asked Questions on the Skin-Glossymeter.
Dimensions: 13 cm x Ø 2.4 cm, Cable length: approx. 1.3 m, Measuring area: 2.5 mm x 5 mm, Weight: 85 g incl. probe cable
Measurement principle: reflectance, Light: white LED, emittance at 60°, reflection measurement at 60°, diffuse reflectance measurement at 90°
Units: Glossymeter units (excellent correlation with industrial standard units GU based on DIN and ISO), Accuracy: ± 5%
For the dimensions, etc. of the wireless probes, please see the technical data of the basic devices.
Technical changes may be made without prior notice.