Kiehl's Clearly Corrective Brightening and Soothing Treatment Water

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: 3-o-ethyl ascorbic acid.

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, methyl gluceth-20.

When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).

This product contains antioxidants (3-o-ethyl ascorbic acid) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

This product does not contain ingredients that are able to reduce fine lines and wrinkles or help with skin elasticity, but it can improve the look of the skin temporarily through moisturization. Well-moisturized skin might also be able to repair the sun damage better.This ingredient - 3-o-ethyl ascorbic acid - could be helpful for preventing or repairing signs of aging in theory, but there is no evidence that it actually works.

This ingredient 3-o-ethyl ascorbic acid might be able to help neutralize free radicals in skin and help it fight off some of the sun damage.