Selenium has a wealth of uses, such as contributing to the normal function of the immune system and the protection of cells from oxidative stress. Like Biotin, Selenium contributes to the maintenance of normal hair, as well as the maintenance of normal nails.

Is it safe to take selenium everyday?

When taken by mouth: Selenium is LIKELY SAFE for most people when taken by mouth in doses less than 400 mcg daily, short-term. However, selenium is POSSIBLY UNSAFE when taken by mouth in high doses or for a long time. Taking doses above 400 mcg can increase the risk of developing selenium toxicity.

What vitamins will strengthen my nails?

Biotin (also known as vitamin H and vitamin B-7) is one of the B vitamins. Because it's water-soluble, it isn't stored by the body, so you have to ensure that you consume it daily. Biotin can help strengthen hair and nails and also helps the body's nervous system to function properly.