Hydrating the skin around the eyes helps improve the turgor of the skin.
Dark circles under the eye are the result of three main causes:
1. Thinning of the skin to make the hue of the underlying blood vessels and muscles more visible
2. Pigmentation that can be genetic or the result of rubbing of the eyes such as with allergies
3. Loss of volume around the eyes By hydrating the skin without adding to irritation, this can lessen the appearance of under eye circles and reduce inflammation to avoid further discoloration)