Zinc is an essential trace element for homeostasis (physiological balance). It plays a major role in vision. It stimulates the recomposition of retinal purple by transforming retinol into retinal. This reaction occurs at night, in the dark.

In particular, it contributes to :

• maintaining normal hair and nails,
• normal operation of the immune system,
• maintaining a skin and a normal frames,
• a normal cognitive function,
• maintaining a normal vision,
• protect cells against oxidative stress,
• a role in the cell division,
• normal acid-base and carbohydrate metabolism,
• the normal DNA and protein synthesis,
• a fertility and normal reproduction,
• normal metabolism of macronutrients, fatty acids and vitamin A
• maintaining a standard rate of testosterone in the blood.