The Swanson product uses 100 mcg of selenium in the form of l-selenomethionine. Selenium is a micronutrient that is essential for the normal functioning of the human body.

The product contains:

• Selenium - is a micronutrient that was originally thought to be toxic. Selenium strengthens immunity, helps maintain normal thyroid function, and has a positive effect on the appearance of hair and nails. Interestingly, this element also influences spermatogenesis in men. The amount of selenium required depends primarily on age. Sources of the element are mainly Brazil nuts, tuna, sunflower seeds, cod or mackerel.

For supplementation, it is recommended to take one capsule each once or twice a day.