Myths vs facts: TSH and skin aging

The question of myths vs facts regarding TSH and skin aging is not directly addressed in the provided context. In general, TSH (thyroid-stimulating hormone) regulates thyroid function, and both hypo- and hyperthyroidism can affect skin – e.g., dryness, wrinkling, or loss of elasticity. A common myth is that a slightly elevated TSH alone accelerates skin aging; in reality, effects are mostly indirect and depend on peripheral thyroid hormones (fT3, fT4). Another myth: TSH reference ranges are universal – they vary by age, sex, and laboratory. Facts: Thyroid dysfunction can promote skin changes, but a single TSH measurement without fT3/fT4 and clinical context is insufficient to assess skin aging. Evidence is moderate (observational studies) but not supported by RCTs. Note: MyBody-X does not offer a TSH test; for valid assessment, medical lab diagnostics and clinical examination are required.