피부수분 측정법

Abstract

Water is the plasticizer of keratin, allowing the SC layer to bend and stretch, avoiding cracking and fissuring. Various techniques of skin hydration have been developed. However the electrical assessments have become very popular for their relative low cost, ease of use and portability. Electrical measurements include instruments using capacitance (CorneometerⓇ CM 825, C+K, Germany; MoistureMeterⓇ SC-2, Delfin Tech., Finland), those using conductance (SkiconⓇ 200, I.B.S., Japan) and those using impedance (Nova DPMⓇ 9003, Nova Tech. Corp., USA; DermaLab-Moisture ModuleⓇ, Cortex Tech., Denmark). The CorneometerⓇ CM 825 is less variable than the SkiconⓇ 200 and is good for assessing relatively dry skin. And it correlates well to the MoistureMeterⓇ SC-2. The SkiconⓇ 200 seems to have the least reproducibility and measures SC hydration of more superficial parts of the skin than to the CorneometerⓇ CM 825. The NOVA DPMⓇ 9003 appears as the least variable And it is more useful in assessing relatively high water content levels and the SkiconⓇ 200 does. In this study, we investigated many studies about electrical measurements and principles of commercial instruments to assess the hydration state on the skin surface.