Myths vs facts: Eisen-Ferritin Selbsttest and skin aging

The myth that an iron/ferritin self-test directly indicates skin aging risk is not supported by strong evidence. Ferritin is a storage protein for iron; both deficiency and excess can affect skin health – deficiency impairs oxygen delivery and collagen synthesis, while excess promotes oxidative stress and may accelerate aging. However, the evidence linking ferritin self-testing to skin aging is weak: most studies are mechanistic or observational, and effects are small compared to UV exposure, diet, and lifestyle. Self-testing without medical guidance carries risks: reference ranges vary, and misinterpretation can lead to unnecessary supplementation (iron overload) or missed underlying conditions. Fact: ferritin is a useful biomarker but not a skin aging predictor. For evidence-based skin aging assessment, established methods like skin analysis, lifestyle evaluation, and physician-ordered lab tests are needed. MyBody-X tests do not include ferritin; their DNA and microbiome tests also lack direct relevance to skin aging.