Caffeine isn't just for coffee and soda. There's probably caffeine in the beauty products you have lying around your house right now. For example, many cellulite creams contain caffeine, because some people believe it can reduce the appearance of cellulite dimpling on a cellular level. It's also in shampoos and hair products to stimulate hair growth through inhibition of the 5-α-reductase activity. When used in sunscreen lotions, caffeine can even boost the SPF power by protecting cells against UV radiation and slowing down the photoaging process of the skin. We've collected some awesome videos on this topic. Watch them now to learn more.