Stanford researchers investigate link between skin carotenoids and immune health

This observational study at Stanford University looks at how levels of carotenoids (natural pigments from fruits and vegetables) in the skin relate to immune aging and skin health. Researchers will measure skin carotenoids and compare them with aging markers like wrinkles, inflammation, and telomere length. The study involves 40 healthy adults in two age groups (18-30 or 65+), with no treatment or intervention.