Is Eisen-Ferritin Selbsttest useful for Haut?

An iron-ferritin self-test measures ferritin levels, reflecting body iron stores. For skin, this can be relevant: iron deficiency causes pallor, brittle nails, and hair loss; iron overload (hemochromatosis) can lead to bronze skin discoloration. However, a self-test without medical guidance is limited – interpretation depends on inflammation markers, sex, and age. Evidence for direct skin benefit is weak (human-moderate). A physician should confirm abnormal results and investigate underlying causes. The test may serve as a screening tool but does not replace professional diagnosis. Caveat: self-tests often lack rigorous validation and can lead to misinterpretation or unnecessary anxiety.