Caffeine

Caffeine works on two fronts. Around the eyes, it temporarily constricts blood vessels to reduce the look of puffiness and dark circles — a reason it features in so many eye creams. On the body, it's a key ingredient in firming and anti-cellulite formulas, supporting the appearance of smoother, tighter skin. The effect is temporary but genuine, and best in the morning. Apply with gentle tapping or massage; chill for an added de-puffing lift.