Proxerex Oral Powder Sachet 6g is a food supplement containing L-arginine, L-carnitine, Niacin, Zinc, Selenium, Maca extract, and Cocoa powder. These ingredients contribute to the maintenance and protection of cells from oxidative stress (Zinc, Selenium) and to the reduction of tiredness and fatigue (Niacin). Cocoa powder helps to maintain endothelium dependent vasodilation, which contributes to normal blood flow. Maca extract is traditionally and scientifically known to support male libido. Zinc increases serum testosterone level and testosterone contributes to sexual desire and mood. Cocoa flavanols exert aphrodisiac activities. Maca extract increases sexual desire and improves sexual performance. L-carnitine exerts neuroprotective effects, also stabilizes cell membranes, reduces production of reactive oxygen species. Selenium protects cells from oxidative stress.