Myths vs facts: DNA Stoffwechseltest and skin aging

DNA metabolism tests (e.g., MyBody-X) often claim to predict skin aging from genetic variants. Fact: Skin aging is driven by UV exposure, lifestyle (diet, smoking, sleep), and collagen metabolism – not by single metabolic genes. Most offered markers (e.g., FUT2, FADS2, IL6) have weak or indirect links to skin health. A 'metabolism test' might indicate a tendency for lower vitamin B12 or omega-3 status, which could theoretically affect skin barrier function, but effects are small and not specific to aging. Clinical biomarkers like vitamin D levels, hsCRP, or omega-3 index are more informative. Myth: The test predicts your 'skin aging speed'. Fact: Without blood values, skin analysis, and lifestyle assessment, the claim remains speculative. MyBody-X itself rates many such tests as 'marketing' or 'unclear'. Caution: No DNA test replaces dermatological advice or proven anti-aging measures (sunscreen, antioxidants, retinoids).