What's the Deal with Caffeine in Eye Creams and Serums?

Many of us rely on a cup or more of coffee (or caffeine) to wake up and reduce tiredness. As a natural stimulant, caffeine increases the activity in the central nervous system to increase alertness, so you'll feel more awake. Coffee, furthermore, is one of the main sources of caffeine worldwide, but did you know that it is also a popular ingredient in eye creams and serums?