Yes. No way they're going to spray it in their mouths, caffeine is horribly bitter. Assuming it absorbs well through the skin, this is advantageous as a deliver

Yes. No way they're going to spray it in their mouths, caffeine is horribly bitter. Assuming it absorbs well through the skin, this is advantageous as a delivery system because it won't go through first-pass metabolism by the liver and kidneys as anything absorbed by the gut does. Theoretically, this means that a much lower dose is necessary.