RecruitingNCT07221643

Carotenoids in the Skin and Immune Aging

Carotenoids in the Skin and Immune Aging: a Pilot Observational Study


Sponsor

Stanford University

Enrollment

40 participants

Start Date

Oct 9, 2025

Study Type

OBSERVATIONAL

Conditions

Summary

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


Eligibility

Min Age: 18 Years

Inclusion Criteria4

  • 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 Criteria5

  • 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

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Locations(1)

Stanford Health - General Dermatology Clinic

Redwood City, California, United States

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NCT07221643


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