Moderate evidencemineral
Iodine for Dry Skin
Thyroid hormones regulate keratinocyte turnover and sebaceous gland activity, maintaining skin hydration and barrier function.
How strong is the research?
Moderate evidence
Based on cohort study data — strong observational evidence.
Research source
SourceVenturi S et al. · Thyroid Research 2013How much to take
150–250 mcg
Most effective when dry skin is due to subclinical hypothyroidism. Monitor thyroid markers.