Cucumber extract is a high potency anitoxidant.  Cucumber extract  is a welcome addition to anti-aging products. Cucumber extract contains fragrant components that are not sensitizing to skin, so it can be used to enhance the natural scent of a cosmetic product without issue.  Rich in skin-enhancing nutrients like vitamin C, caffeic acid (another antioxidant), fatty acids, silica and other minerals, cucumber extract is a popular ingredient among soothing and hydrating skin care products. Aside from antioxidants, it also contains high concentrations of lactic acid, which helps rid skin of dead surface layers.