"Scented with peppermint oil and infused with caffeine anhydrous, each bar of Shower shock contains approximately 10 servings/showers per 4 ounce bar with 250 milligrams of caffeine per serving. No, we're not kidding and no you don't eat it. The caffeine is absorbed through the skin... "

This cannot be healthy...

ThinkGeek :: Shower Shock Caffeinated Soap