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Measuring and Modeling Contractile Drying in Human Stratum Corneum
Published on: March 1, 2017
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Sensitivity of cutometer data to stratum corneum hydration level: A preliminary study
1University of Cincinnati College of Phamacy, Cincinnati, Ohio, USA.
Summary
Investigating skin hydration, this study found limited correlation between cutometer mechanical properties and stratum corneum hydration. Lowering cutometer vacuum did not improve hydration sensitivity.
Area of Science:
- Dermatology
- Biophysics
- Instrumentation
Background:
- The cutometer measures skin mechanical properties.
- The NOVA dermal phase meter (DPM) quantifies stratum corneum (SC) hydration.
Purpose of the Study:
- Identify cutometer parameters sensitive to SC hydration.
- Assess if reduced skin stress enhances cutometer hydration sensitivity.
Main Methods:
- Two studies involved hydrating volar forearms with wet towels.
- A third study hydrated leg skin with lotions for two weeks.
- Cutometer and DPM measurements were taken under varying vacuum levels.
Main Results:
- Significant hydration-induced changes were observed in both DPM and cutometer readings.
- Only three correlations were found between cutometer and DPM data.
- Different cutometer parameters showed sensitivity in each study, lacking general consistency.
Conclusions:
- Limited correlation suggests differing measurement depths between instruments.
- No clear cutometer parameters are consistently most sensitive to hydration.
- Reducing cutometer vacuum did not generally enhance hydration measurement sensitivity.
