- Provides 200µg selenium (twice the level found in most products) - Combined with significant levels of vitamin A, vitamin C and vitamin E - Selenium contributes to the maintenance of normal hair and nails as well as the regular function of the immune system - It is also involved in the protection of cells from oxidative stress (by free radicals) and plays a role in male fertility as it contributes to normal spermatogenesis - One-a-Day formula Suitable for vegetarians and vegans.