Caffeine is present in coffee, Cola soda, and a lot of teas, including black tea. The substance caffeine is not a stranger to beauty products.
Check out Hawaii Kona Coffee Soap
The aroma of freshly brewed coffee, mixed in with a rich scent of pure Hawaiian Kona coffee and a blend of wonderful oils makes this soap not only alluring on your nose but great for your skin
Caffeine is highly used in specialized creams for the eye area, to brighten tired eyes - the property of the substance is to constrict those most superficial and tiny blood vessels, a cause of dark eye circles, minimizing their appearance.
The deal with coffee and beauty is to not drink too much, since it dehydrates the body and stains the teeth. If you think about it, the same principle can be applied for red wine.
Be good and be healthy!