Expertly developed by midwives and dietitians, this is a natural and vegan formula. Start taking before you begin trying to conceive to help healthy sperm production. Zinc - contributes to normal fertility and reproduction, the maintenance of normal testosterone levels in the blood, and has a role in cell division Selenium - contributes to normal spermatogenesis and the protection of cells from oxidative stress Vitamin B6 - contributes to the regulation of hormonal activity Zinc, Vitamin B6, B12, C, D + Selenium - contribute to the normal function of the immune system Vitamin B6 & B12 + C - contribute to the reduction of tiredness and fatigue and normal energy yielding metabolism