Cafeine

Yes, caffeine can Removes dead skin cells and reduces the appearance of hyperpigmentation.

I find the caffeine helps with puffy undereye and dark circles.

Although caffeine can be effective, the effect is only temporary

Caffeine helps reduce under-eye darkness by constricting blood vessels, which can lessen the appearance of dark circles caused by poor circulation or puffiness. It also has anti-inflammatory properties, helping to reduce swelling and tighten the skin, making the under-eye area look brighter and more awake.