When it comes to building an effective skin care routine, pinpointing the right products with the right ingredients for your skin type is essential. Under-eye creams are no exception — and caffeine is one of the best ingredients to look for in a formula, according to our experts. In addition to its antioxidant properties that can protect the delicate skin around the eyes, caffeine also helps constrict blood vessels, reduce puffiness and the appearance of dark circles, says Manuela...