Active Ingredient: Caffeine
What It Does: While caffeinated beverages like coffee have been found to dehydrate the skin, applying it topically to areas such as puffy eyes can have a skin-smoothing effect because caffeine helps tighten blood vessels and remove excess water under the surface (though results are only temporary). One Harvard study also found that drinking a cup of coffee daily may help protect the skin from UV rays.
Other Sources: Rather than overload on coffee and cola, get the benefits from caffeine-infused lotions and creams such as Kiehl’s Powerful Wrinkle Reducing Eye Cream ($42, kiehls.com) to reduce puffiness and redness.
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