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)
You may not be if
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
Clareo Health | Carotenoids in the Skin and Immune Aging
