Each spray of Primer will most certainly freshen your breath, but it will also send about 33 mg of caffeine rushing through your blood stream. Three sprays is more caffeine than an energy drink. And because it is getting absorbed in your mouth (rather than battling out stomach acid), you’ll get the boost really fast. Primer Caffeinated Breath Spray is just about the most perfect caffeine deployment system ever devised. You know you need this. So buy some, freshen your breath, and wake up – now!