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Driving Time and Facial Skin Hydration Asymmetry in Florida Drivers

NCT07764809 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 80

Last updated 2026-08-14

No results posted yet for this study

Summary

his observational study examines whether time spent driving is associated with differences in skin hydration between the left and right cheeks in female drivers residing in Florida. In left-hand-drive vehicles, the driver's left cheek is chronically exposed to ultraviolet A (UVA) radiation through the unshaded side window during every daytime driving episode. A prior study by IAS Skin Care (NCT07564869, n=30) found that the left cheek was less hydrated than the right cheek in 60% of participants, suggesting a possible effect of driving-related UVA exposure on facial skin hydration asymmetry.

Eighty female drivers aged 25-65 years residing in Florida will be enrolled. At a single visit, skin hydration will be measured at three facial zones (left cheek, right cheek, and forehead as a symmetrical control zone) using the BT-Analyze bioimpedance device. Participants will complete a structured questionnaire on driving habits, sun protection practices, and skin history. The primary outcome is the Hydration Asymmetry Index (HAI = right cheek minus left cheek BT-Analyze score). Associations between driving time, cumulative driving exposure, window tinting, sunscreen use, and HAI will be examined using Spearman correlation, Mann-Whitney U tests, and multiple linear regression.

Conditions

  • Skin Diseases
  • Photoaging
  • Skin Hydration

Interventions

OTHER

BT-Analyze bioimpedance skin hydration measurement

Non-invasive skin hydration measurement at three facial zones (right cheek, left cheek, forehead) using the BT-Analyze bioimpedance device. Three measurements per zone. Single visit.

Sponsors & Collaborators

  • IAS Skin Care

    lead INDUSTRY

Eligibility

Min Age
25 Years
Max Age
65 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-10-01
Primary Completion
2027-03-01
Completion
2027-03-01

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07764809 on ClinicalTrials.gov