Apart from those commonly- known antioxidants, e.g. vitamin A, C, E and flavonoids, caffeine is also considered one of the most powerful and best-researched antioxidants around! As an antioxidant, caffeine helps fight "free radicals", known as compounds that damage skin cells and speed up aging with wrinkles, dry, dull skin and etc. Free radicals are everywhere so one way to knock them off is to use skincare products that contain rich level of antioxidants like caffeine!
Caffeine has diuretic property which helps promote circulation and reduce the built-up excess fluid in the skin. Hence, this gives it the ability to help eliminate the accumulated waste (or toxin) under the skin, in other words DETOX, making your skin look clearer, smoother and most importantly healthier!
Caffeine dehydrates and stimulates the break-down of fat cells. Working synergistically with its vasoconstrictor and diuretic properties, caffeine can effectively help smooth out the skin, creating more even texture and skin tone on cellulite-affected areas.
Caffeine's ability to quickly and effectively constrict blood vessels has made it a useful substance to help minimize redness and puffiness on the skin. In that regard, and in combination with its detoxifying property, caffeine can help revive your dull-looking skin, making it appear smoother and more vibrant.