- Conditions
- No Condition, Skin Carotenoids and Immune-aging
- Interventions
- Not listed
- Lead sponsor
- Stanford University
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025 – 2026
- U.S. locations
- 1
- States / cities
- Redwood City, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced May 22, 2026, 3:51 AM EDT