Created by The Walter Reed Institute of Army Research for military use, Stay Alert Gum has been clinically proven to increase physical and cognitive performance as well as improve overall vigilance. With this handy mixer pack, you can enjoy Stay Alert brand gum in two minty flavours (refreshing Spearmint, and cool Arctic Mint), each piece supplying a daring 100mg of caffeine. Just one can keep you energised through any gruelling task.

This 4-pack contains:

• 2 x Stay Alert Spearmint Energy Gum
• 2 x Stay Alert Arctic Mint Energy Gum