Mexameter : Principles of Cosmetic Evaluation
The Mexameter is a specialized device used in dermatology and cosmetic research to quantitatively assess skin pigmentation. It employs spectrophotometric technology, which involves the measurement of light absorption and reflection at different wavelengths.
Here’s how the Mexameter works:
- Melanin Measurement: Melanin is the pigment responsible for the color of our skin, hair, and eyes. The Mexameter measures the amount of melanin present in the skin. It does so by emitting specific wavelengths of light onto the skin and then analyzing the light that is reflected back. Melanin absorbs light at specific wavelengths, so by measuring the reflected light, the Mexameter can determine the quantity of melanin in the skin.
- Hemoglobin Measurement: Hemoglobin is a protein found in red blood cells that carries oxygen and gives blood its red color. Hemoglobin levels can affect the appearance of redness in the skin. The Mexameter also measures the amount of hemoglobin present in the skin. It does this by assessing the absorption and reflection of light at different wavelengths that are specific to hemoglobin.
By simultaneously measuring both melanin and hemoglobin levels, the Mexameter provides valuable information about the pigmentation and redness of the skin. This data can be used to evaluate changes in skin color, assess the effectiveness of treatments or products targeted at pigmentation or redness, and track the progress of clinical studies or cosmetic interventions.
It’s important to note that the Mexameter is just one of several devices available for assessing skin pigmentation. Other instruments, such as the Chromameter or spectrophotometers, may also be used for similar purposes, but they may have variations in their specific measurement techniques and capabilities.
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