What role does Ferritin Eisenmangel play in skin aging?

Ferritin is the main iron storage protein, and iron deficiency (Eisenmangel) may theoretically contribute to skin aging. Iron is required for collagen synthesis, antioxidant enzyme function, and cell turnover; deficiency could impair skin structure and increase oxidative damage. However, direct human evidence linking low ferritin to skin aging is limited and inconsistent. Some observational studies suggest an association with wrinkles or reduced elasticity, while others show no clear effect. Additionally, ferritin is an acute-phase reactant that rises with inflammation, complicating interpretation. Consumer DNA or biomarker tests that measure ferritin or iron-related genes (e.g., HFE) cannot diagnose skin aging or predict individual risk. Iron supplementation should only be taken under medical supervision due to risks of overload. In summary, ferritin deficiency is a plausible but unconfirmed contributor to skin aging; lifestyle factors like sun protection and balanced nutrition are far more impactful. Evidence: mixed (mechanistic + observational).