What to watch with Eisen-Ferritin Selbsttest and skin aging?

An iron/ferritin self-test measures your ferritin level, which reflects iron stores. Regarding skin aging, iron is a double-edged sword: it is essential for collagen synthesis and cell function, but excess iron can promote oxidative stress via the Fenton reaction, generating free radicals that damage collagen and elastin, potentially accelerating skin aging (glycation, wrinkle formation). Conversely, low ferritin (iron deficiency) can lead to pale, thin skin and hair loss. However, the utility of a self-test is limited: ferritin is an acute-phase reactant that can be elevated due to inflammation, so a single reading without clinical context is not reliable. There are no established reference ranges for 'optimal skin aging' based on ferritin. The evidence linking ferritin directly to skin aging in humans is moderate, mostly from mechanistic studies and associations. Always have your iron status evaluated by a physician before supplementing.