STOK Caffeinated Cold Brew Coffee Shots delivers 40 Mg of caffeine per serving, which is equivalent to a shot of espresso. It’s a 13 mL Black Coffee Shot that puts more caffeine in your coffee. Comes in a creamer-like container for portion control. Limit to 2 servings per day. Not for use by children under age 18, pregnant women or the caffeine-sensitive. This is the ideal convenience pack. Buy these 100 shots and use them with up to 2 cups of coffee a day. Amazingly enough, these are delicious in some beers. Actual product packaging and materials may vary.