Capacitive Contact Imaging for Skin Measurements
Water in the skin, particularly in the outmost skin layer-the stratum corneum, plays a key role in the skin’s barrier functions as well as its cosmetic properties. However, the water distribution within the skin is not uniform, and to measure the water in the skin is very difficult. Although there are many skin hydration measurement instruments on the market, e.g. Corneometer (Courage+Khazaka electronic GmbH, Germany), DermaLab hydration probe (Cortex Technology, Denmark), MoistureMeter (Delfin Technologies, Finland), Moisture Checker (Scalar Corporation, Japan) and HydraTest (BeautyPro, UK) etc. their performances have left a lot to be desired. No technology can make accurate, absolute water content measurements, and no technology is imaging based.