Zinc is useful in promoting the health of hair, nails and skinZinc Citrate 10mg provides 100% NRV of this useful trace mineral. Zinc is useful in contributing to hair, nails and skin health. It also holds healing properties for the bones, eyesight and skin. In men, zinc contributes to normal fertility as well as proper prostate health. During exercise, men and women may see benefits in muscle hypertrophy and endurance. Gluten free, preservative free, no added sugar, no artificial colouring, no yeast.