Neuro Gum is a sugar-free functional gum combining 40mg of caffeine with L-theanine, plus vitamin B6 and B12, per piece, in wintergreen flavor. This is the smaller 9-piece pack, a good way to try it before committing to the 12-pack. The caffeine-plus-L-theanine combination is commonly used for a smoother sense of alertness and focus than caffeine alone. Because each piece carries a meaningful caffeine dose, account for it alongside coffee, tea, or other caffeinated products, and use caution if you are sensitive to stimulants or pregnant/nursing. Ask our staff if you have questions about how this fits your day.