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Skin-Colorimeter Flex CL 440
Revolutionize the way you measure skin and hair color
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- Skin-Colorimeter Flex CL 440
Overview
The Skin-Colorimeter CL 440-Flex is a scientific probe designed to measure and quantify skin & hair color objectively and reproducibly. Developed by Courage + Khazaka electronic GmbH, it provides reliable color data for cosmetic research, dermatology studies, clinical testing, product development, and claim substantiation.
The CL 440-Flex measures skin color using standardized color values, helping researchers evaluate changes in brightness, skin color, skin tone uniformity, and treatment response. It is especially useful for studies involving brightening products, anti-redness formulations, sunscreens, tanning products, dermatological treatments, and cosmetic procedures.
With its flexible probe design, the CL 440-Flex is suitable for measurements on different body areas and curved or difficult-to-access skin sites. It allows fast, non-invasive assessment of skin color changes before and after product application or treatment.
As part of the Courage + Khazaka MPA system, the Skin-Colorimeter CL 440-Flex can be combined with other probes such as the Mexameter®, Glossymeter GL200, to provide a more complete and quantitative analysis of skin tone and appearance.
Features
Designed for skin color measurement
Specially developed to detect even small colour changes close to the skin surface, making it ideal for comparison studies.
High-accuracy electronics
Uses modern electronics and LEDs with high CRI for accurate and reliable color measurement.
Two interchangeable measuring tips
Includes 13 mm and 7 mm illumination tips for measuring larger areas, small spots, lesions, nails, lips, hair, and other materials.
Unique placement aid
Overlapping light spots help indicate the exact measurement area as the probe approaches the skin
Fast measurement
Provides results in approximately 1 second.
Automatic ITA calculation
Calculates Individual Typology Angle (ITA) to classify skin colour from very light to dark using L* and b* values.
Hygienic and easy to clean
Sealed electronics and removable tips support easy cleaning between measurements.
Flexible system options
Available as a stand-alone device or connectable to MPA systems.
Technology
The Skin-Colorimeter CL 440-Flex uses white high-CRI LED light arranged circularly to uniformly illuminate the skin surface. The emitted light interacts with the skin’s translucent layers, where part of the light is absorbed, scattered, and reflected back to the probe.
The reflected light is measured by the probe and processed as raw XYZ colour values. These values are corrected using a special colour matrix to provide results as close as possible to standard colour values.
The measured colour can be displayed in different colour spaces, including RGB and CIELAB L*a*b*. In the L*a*b* system:
- L* represents skin brightness or lightness
- a* reflects the green-red axis and is related to redness/erythema
- b* reflects the blue-yellow axis and is often associated with pigmentation
The system also automatically calculates the Individual Typology Angle (ITA°) from L* and b*, helping classify skin colour from very light to dark.
Application
Skin and hair color evaluation
Designed to objectively measure changes in skin and hair colour for research, product testing, and before-and-after comparisons.
Cosmetic and pharmaceutical efficacy testing
Suitable for evaluating self-tanners, make-up, whitening/brightening products, decorative cosmetics, patch testing, hair products, and carotene food supplements.
Small-area color measurement
With the conical measuring tip, it can precisely measure small areas such as pigmented spots, lesions, nails, lips, and small animal skin.
Claim substantiation
Supports claims such as sun protection, brightening, skin tone correction, soothing, anti-irritation, anti-pollution, self-tanning, color protection, concealing, anti-aging, and against dark spots or age spots.
Color measurement on other materials
Can also be used to measure color changes on materials such as plants, fruits, metal, tissue, and other surfaces.
Available Configuration
Available as a stand-alone device or connectable to MPA systems. The Colorimeter CL 400, the previous version, is available as a wireless probe.
FAQs
What does the Skin-Colorimeter CL 440-Flex measure?
The Skin-Colorimeter CL 440-Flex measures and quantifies skin and hair colour. It provides objective data for evaluating brightness, redness, pigmentation, skin tone changes, and colour uniformity.
How does the CL 440-Flex work?
The probe uses white high-CRI LED light to uniformly illuminate the skin. The reflected light is measured by the probe and processed into colour values such as RGB and CIELAB L*a*b*.
What is the benefit of the interchangeable measuring tips?
The CL 440-Flex includes 13 mm and 7 mm measuring tips. The 13 mm tip is suitable for larger areas such as skin and hair, while the 7 mm tip is ideal for smaller areas such as pigmented spots, lesions, nails, lips, and small animal skin.
What is ITA, and does the CL 440-Flex calculate it?
Yes. The CL 440-Flex automatically calculates ITA° — Individual Typology Angle from L* and b* values. ITA helps classify skin colour from very light to dark and is useful in skin colour analysis and UV-related studies.
What applications is the CL 440-Flex used for?
It is commonly used for cosmetic and pharmaceutical efficacy testing, including self-tanners, make-up, brightening products, patch testing, decorative cosmetics, hair products, and colour-related claim substantiation.
What system configurations are available?
The Skin-Colorimeter CL 440-Flex is available as a stand-alone device or can be connected to MPA systems. The previous version, Colorimeter CL 400, is also available as a wireless probe.
Is there a calibration check method, and does the CL 440-Flex require regular calibration?
Yes. The accuracy of the Skin-Colorimeter CL 440-Flex can be checked easily at any time using the appropriate calibration check tool or procedure.
To maintain accuracy, reliability, and traceability, the CL 440-Flex should also be calibrated by the manufacturer every 2 years. Regular calibration helps support quality control, study consistency, and claim substantiation requirements.
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