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Carotenoids in the Skin and Immune Aging

Carotenoids in the Skin and Immune Aging

Recruiting
18 years and older
All
Phase N/A
  • Technical (Original)
  • Simplified (AI rewritten)

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Overview

This study aims to examine the connection between the level of carotenoids in the skin and a number of immune related health parameters.

Eligibility

Inclusion Criteria:

  • Willing and able to provide written informed consent
  • Age 18-30 years OR 65 years and older
  • Healthy individuals without uncontrolled medical conditions (over the counter inhaled and topical steroids allowed)
  • Fiitzpatrick I-VI (all skin types)

Exclusion Criteria:

  • Pregnant or breastfeeding
  • uncontrolled medical conditions
  • Skin conditions on the upper extremity that would interfere with skin measurements of carotenoid levels such as active atopic dermatitis or psoriasis
  • Concurrent use of medications that affect the immune system, within 4 weeks of enrollment (eg. prednisone, biologics, methotrexate, rapamycin, prescription topical steroids, prescription inhaled steroids, others)
  • Unable to follow study protocol

Study details
    No Condition
    Skin Carotenoids and Immune-aging

NCT07221643

Stanford University

1 November 2025

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