Mexameter® MX 18
Assessing Melanin Content and Erythema Level
The Mexameter® MX 18 is a very easy, quick and economical tool to measure the two components, mainly responsible for the colour of the skin: melanin and hemoglobin (erythema) by reflectance. There are many fields of application where changes in the skin colour are of interest. The instrument is worldwide established and used in many scientific studies.
The Measuring Principle
The measurement is based on absorption/reflection. The probe of the Mexameter® MX 18 emits 3 specific light wavelengths. A receiver measures the light reflected by the skin. As the quantity of emitted light is defined, the quantity of light absorbed by the skin can be calculated. The melanin is measured by specific wavelengths chosen to correspond to different absorption rates by the pigments. For the erythema measurement specific wavelengths are also used, corresponding to the spectral absorption peak of heamoglobin and to avoid other colour influences (e. g. bilirubin).
Advantages of the Mexameter®
Fields of Application
There are many fields of application where changes in the skin colour are of interest.
The Mexameter® MX 18 is available as a stand-alone device or connectable to the MPA systems or as a wireless probe.
Dimensions: 13 cm x 2.4 cm Ø, Measuring surface: Ø 5 mm ≈ 19.6 mm², Cable length: approx. 1.3 m, Weight: 85 g (incl. cable)
Measurement principle: absorption/reflection, Wavelengths: 3 colour measuring system green: λ = 568 nm, red: λ = 660 nm, infrared: λ = 870 nm, Units: arbitrary Mexameter® units (0-999 for melanin and erythema), Measurement time: 1 s, 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.
Dpro Scientific Sdn. Bhd.
B-08-03, Dataran 32,
No. 2 Jalan 19/1, 46300,
Petaling Jaya, Selangor,
Dpro Scientific Pte. Ltd.
80, Genting Lane,
#09-10 Ruby Industrial Complex,
Tel +6(03) 7960 4710
Fax +6(03) 7960 4711
H/P +6(012) 2175277