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Updated: Feb 4, 2026
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Published on: July 14, 2023
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Comprehensive mapping of human body skin hydration: A pilot study
Hernán Cortés1, Néstor Mendoza-Muñoz2, Francisco A Galván-Gil3
1Laboratorio de Medicina Genómica, Departamento de Genética, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, México, México.
Summary
Human skin hydration varies significantly across the body. Factors like anatomical position, mechanical wear, and sun exposure influence skin moisture levels, offering insights for product development and health monitoring.
Area of Science:
- Dermatology
- Human Physiology
Background:
- Skin hydration exhibits significant structural and cellular variability across anatomical regions.
- Previous studies focused on limited representative skin areas.
Purpose of the Study:
- To conduct a comprehensive assessment of human skin hydration.
- To map hydration across the largest possible body surface area.
Main Methods:
- Utilized Corneometer® CM825 probe for hydration measurement.
- Analyzed 23 anatomical regions in five healthy males.
- Recorded 7863 measurements across supine, prone, and lateral body positions.
Main Results:
- Observed distinct hydration differences based on body position (prone, supine, lateral).
- Noted increased hydration towards the neck on the chest and back.
- Found higher hydration in proximal areas and near joints (elbow, knee).
- Identified lower hydration in areas of high mechanical wear and sun exposure.
Conclusions:
- Human skin hydration patterns are influenced by anatomical function and sun exposure.
- Detailed hydration mapping can inform topical product design and efficacy assessment.
- Skin hydration data can serve as a biomarker for monitoring skin pathologies.
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