What it is
Caffeine is an organic compound found in coffee, tea, chocolate and in lots of other plants.
What it does
Caffeine has antioxidant properties which offer protection from free radical damage, one of the main causes of aging. It isn’t however, the best antioxidant ingredient available today.
In addition, it works as a skin conditioning agent, which means that it makes skin supple, reduces flaking and generally improves the appearance of skin that is dry and damaged.
Caffeine is also often included in cosmetics products claiming it can treat puffy eyes or cellulite, but sadly there is no proof it works in those ways. What it does instead is make skin look smoother so your cellulite won’t be so visible (but still there!) but the effects are only temporary.
Caffeine can dry skin, so make sure you keep it hydrated when using products with this ingredient.