Selenium 200mcg- Selenium Supplement Drops Thyroid & Immune Support(2oz)

Customers find the selenium supplement effective, with one noting it helped with their swollen thyroid gland and another reporting improved gut health. The product receives positive feedback for its natural mustard seed source, good taste, ease of swallowing, and health benefits including immune system support and increased energy. While some customers report no stomach upset, others experience nausea and headaches.