Patented Japanese seaweed encapsulation technology protects the vitamin C in this serum from exposure to light or oxygen -- both known to decrease efficacy --until it's applied directly to skin. Once applied, the tiny capsules burst open to drench your skin in good-for-you antioxidants. Definitely a more exciting way to apply vitamin C to your face.

If you're an urban dweller, you need some extra defense in the form of vitamin C for your skin. Pollution, cigarette smoke and other impurities can dull the complexion, but this serum is packed with valuable ingredients to fight off aggressors. Other than the obvious vitamin C serum benefits, this formula contains an exclusive skincare complex called EUK-134, fluid 02 which helps to carry much-needed oxygen into the skin, as well as soy proteins which can actually help convert those damaging free radicals into healthy oxygen.

As a tried-and-true product, this C-spiked formula follows the similar vitamin C & E cocktail that the others do; however, this one holds quite a few extra antioxidants like lilac leaf cell culture extract, glutathione and ergothioneine. When applied, these ingredients work harmoniously to hydrate and strengthen the skin.

The name says it all: This concentrated serum specifically targets brown spots in order to create a more evenly toned complexion. With a lotion-like feel, this formula glides on without feeling greasy, making it a great everyday option for reenergizing the skin.