BioActive Selenium & Zinc 60. Contributes to normal function of the immune system.. Pure, organically bound selenium yeast (SelenoPrecise), zinc and vitamins B6, C and E. Selenium and zinc supports the normal function of the immune system. Vitamin E contributes to the protection of cells against oxidative stress. Vitamin C supports normal collagen formation for the normal function of bones, gums, teeth and cartilage. Vitamin B6 contributes to normal psychological function. Optimized over 25 years of research. Manufactured under Danish pharmaceutical control