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Clinical Trials in the USA / NCT07764809
Recruiting Observational

Driving Time and Facial Skin Hydration Asymmetry in Florida Drivers

NCT07764809 · tracked via the Priya Life Science USA tracker
Sponsor
IAS Skin Care
Phase
Observational
Started
2026-10-05
Last updated
2026-10-13

Condition(s) studied

Skin DiseasesPhotoagingSkin Hydration

Investigational drug(s) / intervention(s)

BT-Analyze bioimpedance skin hydration measurement

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.

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.

Eligibility

Sex
FEMALE
Min age
25 Years
Max age
65 Years
Healthy volunteers
Accepted
Inclusion Criteria: * Female sex, aged 25 to 65 years (inclusive) * Valid driver's license and active driving for a minimum of 3 years * Driving frequency of at least 3 days per week on average * Florida residency for a minimum of 2 years prior to enrollment * Ability to provide written informed consent in English or Russian Exclusion Criteria: * Window tinting on the driver-side window of the participant's primary vehicle * Regular sunscreen application specifically to the left side of the face before driving (more than half of driving occasions in the past month) * Active skin disease on the face at time of assessment * Injectable cosmetic procedures (Botox or fillers) in the past 6 months * Laser resurfacing or chemical peel in the past 3 months * Inability to refrain from facial cosmetics for at least 2 hours prior to the visit

Primary outcome measure(s)

  • Hydration Asymmetry Index (HAI) — Single visit (Day 1)
    Difference in mean BT-Analyze bioimpedance scores between the right and left cheeks (HAI = right cheek mean minus left cheek mean). A positive value indicates lower hydration on the left cheek relative to the right.

Trial sites (1)

FacilityCityRegionStatus
IAS Skin Care Orlando Florida Recruiting

Other trials for the same condition

Evaluation of SPM™ Topical Cosmetic Application on Skin Appearance, Hydration, and Barrier Support in Healthy Adults Starting soon
A Study to Investigate Safety and Efficacy of KB111 for the Treatment of Hailey-Hailey Disease Recruiting
Official registry record

This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.

View NCT07764809 on ClinicalTrials.gov ↗ ← All trials in the USA