In this category you will find food supplements that can contribute to increased desire, energy and circulation. Vitamins such as vitamin C , B6, B12 and folic acid contribute, among other things, to reducing fatigue and exhaustion. Among other things, biotin contributes to normal metabolism and to maintaining normal mucous membranes. Among other things, zinc contributes to maintaining normal testosterone levels. These are examples of vitamins and minerals that are often found in food supplements for increased desire and energy.